You probably do this already but just flipping the canvas horizontally helps me, when you flip it and see things from the other side it really helps, as things that you had gotten used to suddenly stand out as maybe odd or out of place.
Like I said you probably do it anyway Definitely something I learned from tutorials by Dylan Cole and it pretty much applies to all PS work
You went a bit too easy on the robot and railroad tracks, that's why they stand out a bit. But I really like what you did with the colouring style of the tree, birds, girl, etc. this looks totally cool!
No, please don't feel guilty or anything (wished I didn't say anything ) really, I don't mind....I used to work at a forum for computer problems and the people who I helped did not expected that it was a girl who helped them out, computer, hardware/software is more a man's world, so they always say "man" or "he" to me Let's forget it...have a great day!