Once I was happy that I captured a good foundation I then wrapped some better geometry around that sketch, put some basic UVs and began the process of refinement. Most of the wrinkles and pores are sculpted in Zbrush by hand or with custom alphas and then later I blended in some TextureXYZ maps in Mari. On top of that I created a tileable microdetail map that could be used to break up the specular response even further in Marmoset and still be affordable.

If anyone is interested in knowing further what I think about as I sculpt and how I use those ideas for creating a model, I recorded this 20 minute lecture via Facebook live on the subject that can be found here: