Very nice use of color and light.
I would just suggest you to work on your lineweight , everything what is closer should have thicker lines, you did it vice versa, same as the values, your overlapping does not work, the further hand should be lighter value and smaller, same as you did with legs, just make the further leg shorter /its too long. Also I would keep the outline also in the head, you removed it and the head is kind of lost, because body is flat, and head is not.
Keep up the great work.