How do you get this sort of soft, blended in, glossy lineart and finish? I really want to incorporate this into my style but it always ends up looking like soulless vectors because my lineart is too clean and a single weight all along, and my shading sucks ass.

(This is not a cumbrain thread I swear, the best pics to illustrate it were porn. The artists I want to imitate have all their step-by-steps behind patreon, too. I'm literally at the end of my rope.)