Another favorite canvas designer & artist of mine is Lillian Chermor. She doesn't do shows or much advertising that I know of, so unless your LNS has her items you may not know of her. She paints in oils with very intense color that screams "stitch me in silk please". Some of more hard to find pieces include tea cozy's and coffee pot covers, oven mitts (hopefully for decoration only), teacups and one of my favorites matryoshka dolls (no they don't nest). All but the delft cats I've had are painted on brown canvas. I like brown canvas but know most prefer white. A medium value background is best for showing color and I think you can do a light or dark for the background and not be too concerned about coverage.
All of these canvases are available in our web store - just click through the image to land at the store.