Once upon a time, drawing straight lines was easy for me. My hands were a bit shaky here. My major mess ups actually contributed a lot to this tile. I colored over them in black and then drew on top with a gelly roll pen. I think it did an amazing thing for the dark/light balance that I often struggle with. The checkerboard patterning from Knightsbridge felt like a very natural way to tie things together.
There is no shading at all on this tile. Most of the time it helps, I think it may have detracted from the overall here had I used it.