I don't want to make it too purple, see below.
http://images1.wikia.nocookie.net/ha...od_Charity.png
You're right, there is a lot happening in the sky. The ark is a very busy place, especially at the core. However, I think that once I adjust colours and brightnesses, the sky will start to come together almost as one. The problem right now is the contrast between the blue sky, the blackness of space, the nebula, the core, and the ark/halo. I need to somehow stick with two colours; orange/red and blue in an elegant way to help unite different elements together while keeping interest. I don't want the sky to be distracting. Put simply, nothing's balanced out just yet; I'm just in the creation phase.
It's a strato-sentinel. I've got a few of them floating around and a chain of them on the horizon.