Looking at the thumbnail, it's easy to mistake it for a photograph. I'm so jealous... your shading. AH. You did a particularly good job with the jeans--they look incredibly real. You're extremely talented.
Amazing work, the delicacy of shading is quite phenomenal. Also, you can draw hands which are my pet hate as I can never make them look right. Interesting pose - was this from a model or a photo reference?