This is the original full color painting created by Walter Velez (1939-2018) for the cover of Ben Bova's science fiction novel, published by Tor/Pinnacle, 1983.  (I show the publizshed cover for your reference) Great visual image and effect in this large and impressive work, handpainted in acrylics on stretched canvas,  30" x 18" and is signed by Velez.