Mystery Artist on Rip Kirby

The above artwork is being auctioned on ebay. The seller is unsure of the artist but has put forward Gray Morrow as his best guess. I feel the page is not by Gray Morrow but who could the artist be?

The stance and facial expression of the hat-wearing hoodlum suggest Dick Giordano, but nothing else on the page looks like Giordano. The hatched shading brings to mind the many Spanish and Filipino artists that were prevalent the comics industry in the 1970s, and the young lady in the foreground does look like it might have come from the hand of Tenny Henson. But maybe not.

Who drew this artwork?