I’ve long felt that the Cleric Quintet is an underrated series, from a writer who gets a lot of undue flak simply because he’s popular. (Protip: disliking something popular does not make you cooler than the people who like it).
I have several of the books in this series from the first print run, and I’ve always loved the art for the series’ final installment, The Chaos Curse. If you play D&D, you’ve probably seen Jeff Easley’s art at some point. The guy joined TSR in the early ’80s, and continued to produce official D&D art up to at least D&D 3.5.
His official website has some very nice, easy-to-browse galleries.