Sure, since you post here polished up ai art, maybe introduce some modularity (eye blinking, talking mouth and if you feel you can pull it off states of mood/behavior). That is a thing nobody does, so there is little competiton and is worth being there for sale (quality assets). At least as a developer that is a thing we always look forward to because only static images are not that uselful to us.
And if you are really adept, create a tool that can hot swap eyes, hair, accessories, hats and clothes (I made such tools already if you are interested in such things and cannot programm).