Thanks everybody for your comments.
Tried to make some nice engine glow for the TIEs but it just didnt looked good.
You're absolutly right with the blue hue. I liked it so much that I didnt even considered it
though I usually add a hue depending on the background
edit:
Maybe someone could help me... Does one of you know how to activate or make the lights for the windows in fractalsponges ISD? Because there's no entry in the Light Lister for them. I'm using Max 9