Very nice, especially for the quick turn around on your first character model.

Since you mentioned animation, I would suggest you pay attention to how you model areas around joints, to make sure that the stretching side can maintain it's volume and the contracting side can collapse in on itself. Here is a random example pulled from the web to illustrate the point. Look closely how the knees and elbows are formed in particular and imagine how that geometry would move if they were to bend.

this is great!! I love seeing awesome lowpoly characters! :D 

This turned out great! I'll need to give this style a go sometime- maybe I'll call it a "retro realism."

This model is rad! The face especially  reminds me of what realistic 3D characters used to look like in the 90's.