1. My goal with this project was to add lots of values in the black and white areas. As well as working with directional lighting. 
2. Honestly, you could create values in lots of objects but hands are the most versatile. Being able to adjust easily and create different shapes.
3. No, it dosen't have the greatest composition and defiantly could be improved. The background is a little blank.  
Hands
Published:

Hands

Published:

Creative Fields