I mostly only use Kirta for 2D artworks. I tried PaintStorm and it was good too, but lacking a lot of important features that Krita has (and Krita is free but not PaintStorm).
For 3D stuff I go with Blender and ZBrush, sometimes Maya.
Same, like, why so oily lmao
I try to avoid over doing it with the highlights in my works so it doesn't look oily.
Yeah, I really do not like the whole concept of characters looking underage in an adult environment Dx
Like, if it's sfw, at some point it's acceptable. In a familly friendly type...