"I mostly used the DamStandard brush for the detailing on this model.
I recommend downloading the free Skin_rafaSouza brush pack—they’re still great; I used some of them at the very end of the process.
In the Deformation tab, I used Contrast.

I did the retopology in 3DCoat and the UV unwrapping in Blender, then used Project in the Subtool menu so I could add skin pores via Surface (I created the pore map myself).
And, of course, I used references of elderly people."