Something I learn abt painting more and more is that while every approach is valid and there are no "rules" you can't break if it serves the piece, it's efficacious to paint "around" a fine detail rather than render it directly a lot of the time. As an example - if painting a long dark crease on skin, at least start by rendering not the dark line, but the two larger lighter hues around it whose presence creates a dark negative between them. Does that make sense?

