/ic/ - Artwork/Critique

Alright, I know the drawing is shit and simple, but I don't think giving it more detail will help with the question I had, so here is an example.

Lets say this is my character. When I draw it, the eyes look perfectly fine to me. Then after an hour I start noticing everything messed up with them. I mirror it and notice things that I didn't see before. Like the pupils are slightly off, the irises are different sizes, or one is too much in the wrong direction. Like, I imagine it looks like total shit to someone else, and it makes me want to just give up and redo the entire eye or face.