Interesting, At first glance I thought all the post sticking up where gallows. Like it was some strange area designed to dish out multiple hanging at one time and place. The more I looked at it, it reminded me of one of the instances in Guild Wars Nightfall exspantion. One where you raced the mobs the the middle and then defended it from them as they spawned at the hubs and tried to take control of the middle.
Looks like a good start, but since I don't have any knowledge with 3d modeling I can't honestly tell you if its good or bad. But, from throwing my own feeble attempts on the forums I have learned a lot from the comments people make.