Good tip Tim. Thanks.
Greens are always popular it seems. In my art, if you put lots of pink colors in the painting then it sells also. The colors on the roses and grapes on the study that I recently put up (I did it about 6 years ago so it's old and ick, but the colors always remain popular) I put it up yesterday on the website and I sold two of them this morning.
http://celestemccall.net/studies1.html) That is always a crowd pleasing color in my neck of the woods.
The old "popular" paintings are using a lot of blues and orange as well.
When painting a bowl of fruit, some artists paint using three analogous colors such as on a pear: orange, yellow, yellow green. That is good. But the problem that some are doing is that they use this idea all over the painting: leaves= yellow green/green/blue green. And then they add a wash of the color of the fruit that is next to it onto the reflected light or highlight, and then they do the same on the grapes and the orange and apple etc. and soon they have a rainbow going. Nothing wrong with that, to be sure, but each color takes up space on the canvas and breaks up the whole. So the old master's secret of keeping it simple was much more wise. Clearer message me thinks.