[TXnMA]

I put only a tiny bit of effort into matching image size, brightness, etc, but, Unless Rapahel painted all ears the same, I'd say the "Fornarina" and the" Velata" portray the same woman.

Fornarina/Velata

(FWIW, in the full image, the "Fornarina" looks pregnant, to me...)

[Hillary's Lovely Legs]

I would say that these are different women. The one of the left has detached lobes and the right has attached.

[CaptainK]

I think they look very similar.

[latina4dubya]

I'd say the "Fornarina" and the" Velata" portray the same woman.

i don't think those ears look alike at all...