I put the sketch of this up yesterday, so here’s the color version. I made a texture up in Photoshop by using different brush sizes and color tones. Then i created a brush from that texture. I laid the flat color down on the image then painted (in gray) on a separate layer (layer mode overlay).
It was fun, I like aspects of it…but it doesn’t seem very cohesive. I probably just need to spend a little more time with it.