For begin my critique i want to say you that you have a great sense of colour. Maybe light is not as much good as the colour you use. In thte center of the picture you have a Great "spot of light", maybe you can more reflect this light in the kind of water, maybe more in grasse, trees and muchrooms.
I love the way you make all this in crude brushs and strong line.
I'm asking what is the head of this character, maybe that's a bit infortunate that we can't see her face, i'm thinking "ho i wanted to see what is the feeling of this character (without face, no feeling) He just like strong with her pose. I love the way you work on his hair-leaf, that's fuk'n good!
The impact is just Huge, but each part of this is pretty good.
Keep this quality in you next work