i like the detail and the color palette, your understanding of light is quite good. what really bugs me is the girl's stance, which seems a bit hard to mantain, since she's on the very edge of the branch (i think she would fall down): also why should she keep her knees so high if there's no branches to sustain her legs? it seems quite a strong abdominal strain. i draw too, so i'm aware that once finished a work is not gonna get any more attention, but maybe in the future you could just move that branch a little more beneath her, that would make this nice pic beautiful.