I spent many many minutes staring at our kitchen trying to get inspired. I liked the look of our microwave and went from there. On the back there is the grating where the fan blows out. That's what caught my eye the most. I also incorporated the boxy shape and the smooth surface. I doodled the first rough while lying in bed. I cleaned it up through tracing then trace inked it with a micron on tracing paper. I colored in photoshop using the beautiful multiply layers and the regular old default brush.