Those JLA covers--his covers in general for most of the 80s--really could sell a book all by themselves, especially face covers like this one--given he's very good at drawing head poses like this. But these covers are very sharp particularly on JLA--they have a sense of excitement, drama and menace, and usually have more spotted blacks than the somewhat brighter TITANS covers.
Was this his own inking? which I realize would have been asking too much for him to do more often.