So, given that bit of art history, is it wrong that Rainbowdog uses, shall we say, unrealistic colors when painting my portraits? I hope you don't think so. (And no, I and NOT comparing myself with Matisse!) Look at this portrait of a pug named Chloe.
No, she isn't actually blue and purple in real life, but I love the way she looks. Maybe your dog would look great in purple?