"Watercolors by Bill Branch" is the current art exhibit at the Memphis Botanic Gardens. The artist has a website here. There is some information about him at ArtistsLink.org. He was born in Arkansas but lives here in Memphis now.
My favorite is a huge triptych of the Memphis bridge, but it's much too large to fit anywhere in our little place. You can see the work online: panel 1, panel 2, panel 3. I'd love to have it over a couch or something, but our couch is not against a wall. And our couch is not that big.
Others I saw that I particularly liked are one of daffodils (view here) and a painting of sunflowers at Shelby Farms (view at the artist's web site here).
A portion of the proceeds from the sales goes to the Botanic Gardens.