I'm a member of the Critique Club and noticed you didn't get the critique you requested so for what it's worth, here's my thoughts on this picture.
First, the idea is not a bad one, catching a skater in the air is always a good shot if you can catch it. The problem here is you caught so much more. If there was any way you could be closer to the skater, take out the railroad tracks and a lot of the brush this would have had a lot more impact as a picture all together, negative exposure or otherwise. As it is there are so many things fighting for my attention it's really hard to focus on any one thing. I see from the title what you're going for and usually when one hears about "the other side of the tracks" it means a bad influence of some sort but I don't get that feeling here either.
Maybe if you focused in on just one subject, either the skater, the tracks, taking a shot of them leading away, something of that sort this might have done better.
I hope my comments help and Good Luck in future Challenges!
Nice coloring, just image is a bit too small for me to enjoy it, why not make the most of the allowed 640 pixles? I think this would look cool printed out LARGE up on a wall.