I seem to be on to these pool balls for a while now. I especially love the yellow one, which is number 1. I'm currently looking to purchase a number 3, which is a solid redish-orange color. I love drawing spheres, although the yellow ball, now that I'm really looking at it, looks a little off anatomically. Light bulbs, also, are an excellent object to practice your drawing. I wanting this little painting to be viewed mostly in shadow with accents from the light source.