I can relate to the feeling of working on something for too long. Not that I'm asking you to check my stuff or anything, you do with your time as you choose, but I put 13 accumulated hours on my most recent upload. not including the time spent scrapping concepts I didn't like.
I motly worked on it during my lunch/breaks at work, about one hour/day, for almost three weeks.

I wish I could make quality stuff like this in just a few hours. Maybe I over-think the little details.