I agree with the consensus. You look great both ways. The balding isn't that pronounced in the before shot.
However, there is an extra spark to your after shots. Maybe it is as simple as your smile. I have to say, if you feel as good as you look in those pictures, keep it bald.
And don't worry about women - remember that we men tend to be more visual and ladies more emotional in their attraction. Usually (not always, but usually) seeing a guy doing something like playing with a puppy or child would be enough to attract a lady, whereas if reversed a man wouldn't care, unless the lady were his idea of "hot."
And even if a woman were going to judge, they are usually (not always, but usually) more turned off by overweight, overage, or messy attire than baldness, anyway. And you seem in shape enough, young enough, and tidy enough that, if it were an issue, the baldness would be a minor one.