I did two more paintings using just these three colors, plus white. (all for the 30 day challenge, of course) Notice I used two blues, but both blue-greens.
What I noticed when seeing them together on my daily paintworks gallery page is the harmony, not only within each painting, but also as a group. Interesting....
If you look at that page at DPW you will see they are cohesive as a group compared to the other paintings on my gallery page.
(love that Sevres Blue, a gift from a very wonderful friend)