peeve and question

What's more annoying than an earworm? A *double* earworm. What's going through my head, inexplicably, is a mix of the words of Stan Roger's Athens Queen to the tune of Steeleye Span's Saucy Sailor. However, I suppose things could always be worse - at least no part of the Gilligans Island theme was used in the making of this earworm. (/holds on hard to Steeleye tune to avoid Gilligan contamination)

Does anyone *cough*Geni*cough* have an idea as to where I could find out what mosaic the tiny one in this ring is copied from? I bought the ring/pendant in Rhodes; the woman selling it said it was a detail from the ??? Princess and stupidly I didn't ask her to repeat it. Googling any combination of Greece, Princess and mosaic mostly yields pictures people have taken of Greek mosaics while on a Princess cruise, unfortunately, or of Zeus seducing Antiope or Europa and the Bull, and it isn't either of those.