I was experimenting with a limited palette here. (4 colors & white) The colors were Viridian, cad yellow pale, cad red deep and permanent rose.....no blue. It's quite interesting and lots of premixing was necessary because let's face it, I was not used to it. Normally, I have my entire array of colors to pick from. I was finding that pet mixtures were dominating my work and I wanted to break out thus this palette. I got it from an older Charles Sovek book. He was one of my teachers.
This little painting (7 x 5) is at auction on DailyPaintWorks. Opening bid $50 or buy it now $75 and free shipping here