layers of stucco and blue paint.
Part of the photo of blue paint on a concrete wall was altered to appear smoother to give more contrast with the bricks. The photo of bricks is represented by my own drawing of bricks. I proofed this at 375dpi (1.5 inch bricks) and it printed great. It prints not quite as bright as the image. Full sized image has 4 inch bricks. Message me with the size you want and I will reset before you purchase.