These are a combination of spray painting with acrylic paints. I used roller brushes and sponges to apply the acrylics. I started with black paint and added the colors on top. Which I like alot. I tried to be a bit messy in the layers. I think some of my other paintings get to precise, I like it when a I leave room for happy accidents. One of these I want to frame (I have a new green wall in my studio) and the others will get cut up and made into something.