A stamped concrete walkway, first are putting the color on the concrete now and steps the darker color is the powdered stain. Troweling it into the surface and adding some additional coloring mix a little brown and with the dark grey. Using a textured matte and pressing in some texture into the surface of the concrete. The pad is using as the texture of the stones on it. Stamping it or pressing it down into the contrary to give it some shape and pattern. Adding some additional texture into the surface to make each stone look a lot like a lava stone. This concrete cure for a few days, then brush it off and put a sealer on it the sealer.