I know, it's a tricky one! It doesn't help that it may be a mix, no telling what other genetics are at work here. We will just wait and see!I agree, Marshmallow is a cockerel. That much color in comb at that age...almost a definite! I'd go cockerel on the OE too.
That is alot of size in a pea comb for a 2 1/2 week old...but legs and tail are looking very feminine??
LOL - she/he's a ???!!!