Just as the Rillito (usually) doesn't have water, this new store just south of River Road doesn't (really) have any either. But the murals could fool you. The store is Planet Scuba at 4837 N. 1st:
I've driven by a few times; there are always cars in the parking lot, blocking part of the view. Luckily, though, I've met the artist, Alexandria Winslow. She sent me close-up photos, including these:
Her website, BackporchStudio.net, shows more of her art.