This is my 4 month old B.B. (Brahma Baby), and hasn't decided on a gender yet
. Comb and wattle say female, chest bone is very pronounced and larger feet than Polly (my female Brahma). We want to sell he/she because its pain in my @$$ being super skittish (we handle our birds alot) and pretty mean towards chicks i.e. stepping on them.
I'm not sure, but I'm going to guess male. Those legs are pretty thick (even for a Brahma), the stance is roosterish, and the coloring is irregular. Still, I''m not sure, as the comb and wattles say pullet. You'll just have to wait until she crows or lays an egg! Post some more photos in a few weeks, and maybe I'll be able to tell a little better.