I wonder if you could make the dome a little closer in color to the other buildings. That's the only thing bugging me.
I'd noticed the same thing. Unfortunately, that kind of manipulation is beyond my meager artistic skills.
Here's a pic to demonstrate what I mean:
This is a publicly-posted pic of libertarian activist Allison Gibbs altered to be an Orion.
It's within my skills to change her skin color to green while leaving her hair, bikini, and background alone. Basically, though, it was a big chunk of skin on which I messed with the color. I'm not entirely thrilled with it, but it's what I can do.
The dome in the pic is so complex that I'm not sure how I would even select the parts that needs to be recolored.
I'm pretty much talentless were it not for the Gimp