My bet is on pullet. I see no evidence of saddle feathers and the tail feathers seem uniformly spaced with nice round edges. I see no spear shaped feathers in the tail. Bright comb and waddles leads me to believe that sexual maturity is right around the corner.
Thanks all! First time chicken owner and the help is much appreciated- I had the same thoughts about the feathers, and I know comb shape/size isn’t a reliable indicator, but I have close neighbors and a rooster would have to go! I needed some expert advice to set my mind at ease