Sombra

Hi, I'm not much of an artist but to me, what stands out here is her right arm, it looks stretched and skinnier than the left arm (Which seems muscular for a girl). And her left breast seems undefined. The face and hair looks perfect, with some minor anatomy tweaks it'll be perfect. The line in the middle matches the angle of the right hand which makes it a bit too geometrical looking, I'd suggest improving the right side as a whole, it's placed lower than it should be, anatomically and your main area of focus should be that right side alone. In my opinion of course!