Answer:
Circulism: Used to shade a base layer on the hand to give it a consistent base texture.
Contour Shading: Used to shade stretched skin.
Hatching: Used to shade nails and stretched skin.
Cross Hatching: Used to create patterns in the skin and to emphasize deep valleys/crevices.
Good job it’s really nice
Rule of thirds
It could be portrayed as the color or just overal photo