Transfer the image onto the canvas using a pencil. (I used the side of the pencil to cover the back of the paper with graphite, then placed the image on the canvas and traced the lines.) You can also use transfer paper if you have it.
Fill in the triangles one color at a time, using Burgundy, Phthalo Green-Blue, Sapphire Blue, Vermilion, and Yellow Deep. (I used a flat, angled brush to make the straight lines on the edges and then filled in the triangle with the color.)
Use a #1 brush to outline and paint the cat silhouette with Carbon Black.