Hello Hamlet. I will try to find a little your regard by writing a constructive comment with my poor English. First of all, you should use a uniform bottom for your photographs. Then, you should finish your bases (Not to leave the holes) The details are good, especially for the face. you should work your highlights, you not satisfied to obscure the hollows. Selected a light source and places your éclaircissments and your shades compared to that. I hope that these councils will help you.
tony