Here is my take on the I.S.S. Galaxy. With this ship I wanted to outfit it differently from the I.S.S. Enterprise-D that we see in IDW Mirror War. I see with ships in the Mirror-verse each one can be outfitted to the Captain's wealth and or EGO. Where the Ent-D is a Galaxy-X the Galaxy isn't.
I know it's been a while since i've done up a schematic file like this.
Attached is also my take on a TNG MIRROR ERA LCARS