i don't know exactly what direction you want to go stylewise, but looking at her pose and anatome i think fixing a few issues could make it look more natural.
her waist doesn't look realistic that way without drawing her a very tight corset. and i don't understand, why the shoulder of the lower arm is higher. if you raise your hand, your shoulder goes up.
i made a quick overpaint to demontrate what i mean (i'm not good with words) -hope you don't mind.