I would go with a different color background and a wider forum area. The white and gray blend to much. You might also want to get a nicer header made, there's a guy here on digital point that does great work for very cheap, $5 dollars the last time I used their service.
Looks very white. It looks clean but i think making it wider and changing a few colours would make it look better
The header is a bit too plain, I would use some pop art vector foliage plants.. or even people (teens) on the header area.
hmm.... the domain is not very catchy to start of with... secondly the header is very very plain.. try to put some vector kinda graphics there to give it a trendy look... the colors seems to be nice....
The skin you choose for your forum ...is not wide ,Little wider will be good... Header is -_-" ...simple or i can say plain (just a text) Better to change it... Rajat