wow! would love to seee some sprites on this! keep it up!
Looks great, except for the far side highlights of the platforms (against the wall), that look a bit odd. Esp. near the circuitboards, where the perspective leads you to think the ground is reaching the back wall. Compared to the top-right platforms that look more "freefloating". The top/bottom tiles are a bit repetitive.
I'll be totally honest... at first I thought this was in RPG perspective for some reason. Looked at it a bit longer and it made sense. I think it might be helpful to make sure there's a good amount of contrast between the foreground and the background wall.
Other than that, beautiful pixel work. 6/5 
Unyinz: Thank you! I try to cover as many hues as possible in my work, I find that complementary colors help to create that feeling of completion to a palette when other basic colors are missing =)
This is really nice! Well done!