That's a hard one. But, I think the sepia because of the beautiful tones in her hair whom get lost in the B&W a bit.These days when seeing B&W next to colour versions I tend to feel more for the colours. IF the colours are any good of course,Signed, The ex- B&W addict...:-))XXX
I agree with Nadja--that it's a tough call. However, unlike Nadja, I prefer the b&w...though only by a hair. Or not by a hair, as it were, because I also think the sepia version does lovely things with your model`s hair.