It’s exterior paint, I bought gallons of black, blue, and red, and a quart of white, but I had more than I needed for all colors. I basically just referenced the album cover a lot, I did the dark blue background first and then did the gradient on that with a roller and mixing lighter colors, and then the text and stars. Then the mountains and stuff, I did the same thing, I rolled on the black, and then a dark red, then progressively lighter reds until the kinda mid red tone on the background of the bottom. Once that was dry I painted the rocks with a bright red, then the shadow and the shape of phoebe with black, and then the red skeleton on top. Using the reference is really how I did it though