There is a reason there are no stars. These are SECONDARY skydomes. They are only supposed to be nebulas. Stars are the purpose of the PRIMARY skydomes. Ingame shots:
those are better, but i think there should be more black space. the secondary skydome shouldnt dominate the space background, it's just supposed to make the background a little less boring. i say a little less of the nebula and more of just space, that makes it seems more realistic. but thats me.
hmmm i have to agree with arb. the first one looks like space, and the other two look like an acid trip....too much yellow in the 3rd and too much red in the 2nd.