This one is not that great but it's all I have besides her "goofy" one that I have used on here before...I'll give it to you as well
I wish I could find one from the side...she had a huge tail that stood up just like yours. Unfortunately I lost her before I got very many pics of her.
I agree with RR. At three weeks, the comb is large and red, indicating a male. A pullet would have a much smaller pink comb. It's usually pretty obvious with single combs. Pea and rose combs are sometimes a little harder to tell with.