Women's shoulders are narrower. The skeleton doesn't really change shape as you put on muscle, so a muscular woman is still much narrower across the shoulders and probably should be even if she's a cartoon character depicted as unreasonably buff. As such, her arms have can have a distinctly feminine shape even with big biceps if the artist is talented. However, untalented artists will simply make the whole body larger if they want to depict a character as muscular which leads to "Tiny head syndrome" where their head is disproportionately small compared to the rest of their body.

In the picture above, her shoulders are about 5 heads wide. This isn't really that attractive, this character design says villain to me. A character whose quest for power has left their body altered and no longer fully human.

5 heads wide is slightly wider than regular Hulk's, whose shoulders are typically depicted at 4-4.5, and his shoulders are already a bit freakishly wide to add to the bestial nature of his design.

Traditional heroes like Captain America generally have shoulders 3-3.5 heads wide. 3 is a good starting point for a typical male design, then you broaden them out just a bit to exaggerate the character to an ideal.

Regular She-Hulk is generally drawn with shoulders 2.5-3 heads wide. Wide for a woman, but still slightly narrower than a man's shoulders. In general, a broad shouldered woman will only go a bit higher than 2.5 headwidths. A cute, attractive woman will likely be closer to 2 head widths wide at the shoulders.

You can subtract another half headwidth off any of these character types if you want to make a teenage version, and you can drop down to 1.5 or 1 if you are drawing a small child. If you go lower than one than it really only works for very moe loli designs and super deformed characters which throw the basic body to head scale out the window.

Furthermore, the design posted in the OP has narrow hips and thighs compared to the shoulders. Bulking out the hips and thighs is a good way to make a character more muscular without making them less feminine. If you don't bulk out the hips or thighs, your character will look thin, prepubescent, or masculine. In this case it's pretty obviously the third case. However even if the artist was to do that, It seems unlikely that the picture would be better, as because the shoulders are already so inhumanly wide that bulking out the hips to match wouldn't balance the character out, but instead move them into the territory of unsettling deviant-art muscle fetish works featuring rippling slabs of meat that are difficult to identify with as a human, likely explaining why the hips and thighs were left as narrow as they were in the first place.

All of this is a very long way of saying the character looks more like Thanos in a wig than any sort of aspirational hero. I don't really know anything about marvel lore, so I have no idea what the character's supposed to be like.

Women's shoulders are narrower. The skeleton doesn't really change shape as you put on muscle, so a muscular woman is still much narrower across the shoulders and probably should be even if she's a cartoon character depicted as unreasonably buff. As such, her arms have can have a distinctly feminine shape even with big biceps if the artist is talented. However, untalented artists will simply make the whole body larger if they want to depict a character as muscular which leads to "Tiny head syndrome" where their head is disproportionately small compared to the rest of their body.

In the picture above, her shoulders are about 5 heads wide. This isn't really that attractive, this character design says villain to me. A character whose quest for power has left their body altered and no longer fully human.

5 heads wide is slightly wider than regular Hulk's, whose shoulders are typically depicted at 4-4.5, and his shoulders are already a bit freakishly wide to add to the bestial nature of his design.

Traditional heroes like Captain America generally have shoulders 3-3.5 heads wide. 3 is a good starting point for a typical male design, then you broaden them out just a bit to exaggerate the character to an ideal.

Regular She-Hulk is generally drawn with shoulders 2.5-3 heads wide. Wide for a woman, but still slightly narrower than a man's shoulders. In general, a broad shouldered woman will only go a bit higher than 2.5 headwidths. A cute, attractive woman will likely be closer to 2 head widths wide at the shoulders.

You can subtract another half headwidth off any of these character types if you want to make a teenage version, and you can drop down to 1.5 or 1 if you are drawing a small child. If you go lower than one than it really only works for very moe loli designs and super deformed characters which throw the basic body to head scale out the window.

Furthermore, the design posted in the OP has narrow hips and thighs compared to the shoulders. Bulking out the hips and thighs is a good way to make a character more muscular without making them less feminine. If you don't bulk out the hips or thighs, your character will look thin, prepubescent, or masculine. In this case it's pretty obviously the third case.

All of this is a very long way of saying the character looks more like Thanos in a wig than any sort of aspirational hero. I don't really know anything about marvel lore, so I have no idea what the character's supposed to be like.

Women's shoulders are narrower. The skeleton doesn't really change shape as you put on muscle, so a muscular woman is still much narrower across the shoulders and probably should be even if she's a cartoon character depicted as unreasonably buff. As such, her arms have can have a distinctly feminine shape even with big biceps if the artist is talented. However, untalented artists will simply make the whole body larger if they want to depict a character as muscular which leads to "Tiny head syndrome" where their head is disproportionately small compared to the rest of their body.

In the picture above, her shoulders are about 5 heads wide. This isn't really that attractive, this character design says villain to me. A character whose quest for power has left their body altered and no longer fully human.

5 heads wide is slightly wider than regular Hulk's, whose shoulders are typically depicted at 4-4.5, and his shoulders are already a bit freakishly wide to add to the bestial nature of his design.

Traditional heroes like Captain America generally have shoulders 3-3.5 heads wide. 3 is a good starting point for a typical male design, then you broaden them out just a bit to exaggerate the character to an ideal.

Regular She-Hulk is generally drawn with shoulders 2.5-3 heads wide. Wide for a woman, but still slightly narrower than a man's shoulders. In general, a broad shouldered woman will only go a bit higher than 2.5 headwidths. A cute, attractive woman will likely be closer to 2 head widths wide at the shoulders.

You can subtract another half headwidth off any of these character types if you want to make a teenage version, and you can drop down to 1.5 or 1 if you are drawing a small child. If you go lower than one than it really only works for very moe loli designs and super deformed characters which throw the basic body to head scale out the window.

All of this is a very long way of saying the character looks more like Thanos in a wig than any sort of aspirational hero. I don't really know anything about marvel lore, so I have no idea what the character's supposed to be like.

Women's shoulders are narrower. The skeleton doesn't really change shape as you put on muscle, so a muscular woman is still much narrow across the shoulders and should be even if she's a cartoon character depicted as unreasonably buff. As such her arms have can have a distinctly feminine shape even with big biceps if the artist is talented. However, untalented artists will simply make the whole body larger if they want to depict a character as muscular which leads to "Tiny head syndrome" where their head is disproportionately small compared to the rest of their body.

In the picture above, her shoulders are about 5 heads wide. This isn't really that attractive, this character design says villain to me. A character whose quest for power has left their body altered and no longer fully human.

5 heads wide is slightly wider than regular Hulk's shoulders are typically depicted at 4-4.5, and his already a bit freakishly wide to add to the bestial nature of his design.

Traditional heroes like Captain America generally have shoulders 3-3.5 heads wide. 3 is a good starting point for a typical male design, then you broaden them out just a bit to exaggerate the character to an ideal.

Regular She-Hulk is generally drawn with shoulders 2.5-3 heads wide. Wide for a woman, but still slightly narrower than a man's shoulders. In general a broad shouldered woman will only go a bit higher than 2.5 head widths. A cute, attractive woman will likely be closer to 2 head widths wide at the shoulders.

You can subtract another half headwidth off any of these character types if you want to make a teenage version, and you can drop down to 1.5 or 1 if you are drawing a small child. If you go lower than one than it really only works for very moe loli designs and super deformed characters which throw the basic body to head scale out the window.

All of this is a very long way of saying the character looks more like thanos in a wig than any sort of aspirational hero. I don't really know anything about marvel lore, so I have no idea what the character's supposed to be like.