Allright, then :-) I did four important things, basically.

First of all, I changed the windows so they glow red instead of what they were. Secondly, I set up the lighting; went for a blue-ish infinite light.

Last two bits were done through postwork: I applied the diffuse glow filter on a seperate layer, lowered it's opacity. Then I blurred the bits of the scene that were further back.

Any other questions? :-)

"...and the earth becomes my throne
I adapt to the unknown
Under wandering stars I've grown
By myself but not alone"