Nevertheless it is unlikely she could draw a longbow with these not existing back muscles.
And she is small and looks as if she had not much to eat while growing up, or is she still a child?
While, in general I think that character in BG3 look very impressive, there is something off with how characters look. Personally, I think this is less about body type (actually all of the characters seem to be in unrealistically peak physical shape) but how armor fits. It looks like they are wearing body-tight costumes, rather than actual clothing/armor. Even light armor should be more padded then it is now. They look like medieval instagramers rather then adventurers. That comes back to me not liking overall visual direction and priorities of BG3.
Helsin is ridiculously large.