He looks like he might be a boy because the comb and wattles are getting a little thick and pink, but they can fool you at that age, so wait a few weeks longer to be sure.
I wouldn't judge by comb alone at this age. I was convinced my GLW was a roo the first few months of her life because she ALWAYS had such a red comb. Those hackle feathers are starting to look pretty defined on that little one, though. I'd prepare myself for Princess being a little Prince.