/ic/ - Artwork/Critique

I would say the first thing to do is to not just mindless copy an artist. That is, if you find an artist from the 80s or 90s you like, figure out what is you like about them. Ask questions. What was popular back then, what trends or visual motifs did people employ in their work? How were compositions, stories, character designs different 20-30 years ago compared to today? Read interviews from the artists you like and the artists who inspired them. It also doesn't hurt to flip through some artbooks now and then. And like some anons mentioned, going back to life drawing and utilizing that new knowledge with your current style will only make you a better artist.