Nice work, Beth. Only the original looks like classic Greek, while yours looks more Tahitian. Very subtle differenced make all the difference. I think it's the dark skin tones.
Here's a thread I found at WC that made me think of you and your master copies:
http://www.wetcanvas.com/forums/showthread.php?t=170747
As you know, I'm about to start painting. I thought of master copies, but my wife is already digging up her favorite cat pictures. She says, as long as I'm just learning, I might as well paint her cats.