Alright stripped down some lights and tweaked other stuff. I also enabled light shafts but for some reason they are not visible on TiledShot.
[Blocked Image: http://img408.imageshack.us/img408/9403/scifiudkwip17.jpg]
And the Skydome I made:
[Blocked Image: http://img6.uploadhouse.com/fileuploads/6711/671111678ddc90d9c839af4dfef569eb4e1cf1f.jpg]
Thanks everyone for the feedback so far!