I don't think you can get much of an accurate answer over whether women prefer buff men from this. He's doing a pose which makes him look tiny in comparison, skinny with oversized arms. The lighting doesn't help either, it makes him look balder and his face look older. Also he's got some decent muscle in the before picture, just a higher bodyfat %. I'd be interested to know what the results would look like if it was more of a recomp where he was closer to his starting weight but with more mass, rather than a straight cut.