I've been messing around Z Brush and some other 3D programs to test out how well I can incorporate 3D human models into my drawing. I sculpted a few heads in Zbrush which I then painted over in SAI.

Hopefully I'll be able to use more 3D in the future to help speed up my drawing process and to save my hand from being over worked orz. It's nice to not have to paint everything from scratch~