Good one! However, agree with some critics above, that you guys can do even better! )
1. Shadows need to move with the move of sun / light. In general shadows can be more dynamic, dense...
2. Reflections - when the warrior is crossing water there's no reflection of him. In general, this particular part when he crosses the river needs polishing. There are no visual splashes when he "steps" in th water and the impression is he is sort of "gliding" over.
I'm sure it will all be ironed in the next few months and thanks for keeping us posted!