After looking at the view of your studio, I am thinking that maybe just a coat of white paint on everything would make it at least look cohesive. (inmyownstyle.com)
It was rough around the edges and had a worn coat of white paint on it. (suburble.com)
Basically one side of the door had like 3 - 4 layers of different colors of paint and the other side only had 1 layer of white paint fortunately. (shadesofblueinteriors.com)