Once I have my topology draw-over, I bring it into a clean scene in Maya as an image plane. We could continue to model the hand in the current pose, but I find it easier to work when looking at the hand flat on. We will later import it into an up-to-date

Another from Alex Cheparev, check out this very simple hand modeling workflow. Alex uses box modeling and simple polygon tools within Maya 2016. This was featured with Maya Monday: 5 Modeling Tutorials for Beginners.