Not bad. You definitely wanted a serious Hunger Games feel. I don't know if this would really make a good map for Survival Games. All survival games maps have had the same corn, with chest in a circle and whatnot. I think the idea of having the corn like in the movie is a great idea, you should find a way to add that into the middle if you can.
As for areas and contraptions, there wasn't much. Now, of course in the movie and books there isn't really much. But then again, you don't see all of the map. Maybe you could as some stuff that Katniss possibly never saw?
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All and all, it's pretty good. I think you should add a bit of polishing, but better than I could do! (plus I'm lazy)