Some of my cover arts

these are really cool man! I almost think that you could add some noise distortion on the top of them to try and make it look like they were printed on paper. You have those crease/fold overlays on it, but since your models are currently so clean and crisp it almost looks a little out of place because its like a crease/fold happening on a 3d space. Just a personal opinion though, I love your composition man!