I too think it is a pullet...the pattern looks nice and even, and while there is more flesh to that comb than I'd prefer, profile shots and color indicate pullet.
I am not a well trained chicken hand, Last year when I got my chickens I had 5 week old pullets and couldn't tell only one was a roo for a couple months. I noticed his waddle start to grow and he had less gold and more black on his back than the hens. Then he grew in his tail and his neck feathers changed colors to mostly gold.