EDIT: One more thing: I sometimes find that when I rely too heavily on
references for poses/anatomy, my figures become a bit stiff. Dunno if
this is a problem for anyone else though.
I often find that when I closely rely on reference, I start to focus way too much on miniscule countour details, and less on the overall gestrure, and that eventually hurts the piece. I think it is just about finding the right amount of abstraction and exaggeration, and looking at the reference rather as an inpiration, than as something you have to stick to. What sometimes works for me is if I take a photo reference and try to render it first in a very exaggerated/cartoony way. The expressiveness often gets diminished in subsequent passes, but if the original sketch is exaggerated enough, it's sometimes less of an issue.
I love those crisp lines in your studies and the lineart piece on top. Can't wait to see more.
Oh, and I'm also glad to see another Hungarian here!