Starting to click with Zbrush

Stephen noble alien05final flat
Stephen noble alien04finalflat
Stephen noble alien render9fin

After putting it off for far to long, I finally decide to learn 3D or die trying.
Currently working through the Zbrush course on Schoolism.
Still so much to learn as I work my way up that steep curve.
All 3 are Poly painted in Zbrush with compositing done in Photoshop.