Homework for figure drawing

This is a hand exercise. We first read about drawing the hand and hand movements and then applied what we read into the homework. I should have done this exercise using more schematic sketching to show where the bones and joints are and where they bend, almost as if the hand was see-through. I think I'll redo this one.
This a homework exercise on proportion and perspective using Sight Measurement, using a pencil to measure the relationship of one body part to another and the angles of each part.The model is my friend Andrina's boyfriend, Rob. Thanks Rob! Just for the record, Andrina did all the sheet adjustments while simultaneously serving as Rob's cabana girl.

This is Andrina