The blue wing bars say male, but to me the comb and wattles are small for a cockerel of that age, but bright for a pullet.
I agree with @cstephens1987 I'd like to see pics from 3 weeks ago, if you have them.
Oh yes most definitely! The sister is not that red or big, but as young chicks they both feathered up faster than the 3rd and both had the same long pointy tail. The 3rd was slow to feather and had a bushy, floofy, round tail. He went to a breeder many weeks ago.