Tough to say with that sample, but I'd say it's probably Canby by Jeff Levine.

Also look at Refrigerator, Diamante, Solano Gothic and Stratum 2

Thanks for the suggestions!

I guess I should have posted the whole cover - the 'A' and 'Y' in the author's name provide some more clues (and rule out the faces you suggested . . .)

Even closer...

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