A couple things you can do to improve it. You need to make the world and clock look like they fit into the eye more, I think. First thing you can do to fix that is make the circles fit into more of the shape the iris should be. It isnt a perfect circle sitting in the middle - part is shaved off. Then after youve gotten that taken care of, add some spots of light for shine and darkness. The dark spot of the eye you don't have to add in as much but I would
