holy cow this is a great study, I like how you do the lost shadows on the figure and hard highlights. However, I would suggest you to limit the range of the light family a little bit so it doesn't look too shiny and metallic. While there are a lot of soft edges on the light, I think the core shadows are too hard and graphic, some core shadows on the biceps, the chest and the brachioradial. if you're aiming for the graphic feeling then you can disregard my comment. Hope it helps.