There are like 20 different paintings that all resemble the mona lisa, and even some nude ones. This was definitely inspired by the mona lisa and da vinci. If it's not him it's gotta be from someone close to him. It looks like it has his "Sfumato" technique, which i describe in my book/site. Itsjustlife.com If you know how to look at it right and control the dilation of your eyes, the painting will change. I wish i had a better quality scan of this painting though to be sure.
Db