Can you take a look at this board layout?

I've just designed a breakout for the ATXMega256A3, the second ever board layout i've done. I was hoping somebody could take a look at it and yell at me if i've done anything exceptionally stupid with the layout. this pdf has a scale factor of 3

I've used the DRC for the pcb house i'm using in eagle, so it should be good on that front