Wow, you really made it epic for sure..
now for some critiques, since you been so nice to me lately i thought id give you some "help" depending on how much my critiques actually helps

so first thing: Paintover

What i did was to improve the contrast, i guess i might have overdone the contrast.. but it makes the picture look more sci-fi'ish. On my screen your picture came out a tiny winy bit desaturated, i had the same problem when i had my samsung screen, it wasn't calibrated at all (Dont know if you remember how grey some of my paintings looked?).. i currently posses a dell which is perfectly calibrated.. i think its the screen artists at blizzard uses :O
i also TRIED to fix the perspective on the house.. it looked to me as the rooftiles in the middle of the building was pointing a little to the left, which gave the first floor roof the illusion of looking like a drape.. i gave it a try but i dont think i managed to do it any better

i also added some blue and green color variations in the shadows, i think there was too much of a purple overtone to the general picture.
the concept is fantastic, i just gave it some personal preferences i guess.