Good evening, Karsaether, and welcome aboard. My name is Polyvios and how are you doing tonight?
Say, you're doing a finer job on your face of your OC's edges, spaces, and facial relationships. I think it's completely getting there but I feel that these could use more bold expressions and caricatures. How would you like to please loosen up your expressive drawings with 5 minutes of 30 second faces and expressions sketches?
As a result, your understanding of how to render the faces and expressions will increase billionfold. For most details, please look up a copy of Andrew Loomis' book on how to draw faces and hands, though your real focus for the day is faces and facial expressions. Good luck and my hat's off to you.