Lonely Bot

This was more an exercise in practicing with the medium than the subject matter. I did a simple bot and just went at it working directly in color rather than starting B&W then washing colors overs. I made some adjustments at the end to the levels (second piece) so not sure if it is too dark now or what. First pic is the original. I spent probably over 3 hours on it, which is long for me on a non- school related piece. But I felt like this was a personal step in the right direction. Didn't use any awesome custom brushes, just used the traditional brushes. CRITS CRITS CRITS please, I know there are things that are wrong and there are some things that are bugging me but I can't put my finger on it. Hope everyone is having a good summer-