actually im not sure about light, because it's on head and in same time falling on the focal from front, but the light is the brightest at head, ang leans like to back? or im wrong? im not sure u did that right.
I would like if u would fill those splatters with clip masks, because splats colour is confusing for me a bit, but i like and a gree with comment that distelo said about depth, its really great, and work is quite clean and not lq, so keep it up mate!