One thing you want to do moving forward is taking advantage of Dynamesh (http://pixologic.com/zclassroom/homeroom/lesson/dynamesh/). When people are just starting out I see lots of large polygons or stretched out polygons that stick out, which are fairly distracting. Dynamesh should fix that for you. Outside of that, look…
First tries at Sculpting in ZBrush, (Gonna try to get a tablet soon) Dynamesh sphere, move, clay tubes, etc.....(going to add a few hours for sculpting practice a day,)just wanted to try my hand at it, alright back to modeling in maya for now.