They both look like drakes to me.
LOL I thought they both looked like females to me but I'm a duck newbie.
My reasoning is the legs look too thin for drakes & the head doesn't appear to have that flatish area I see on some drakes. I'm not good on body ratio. Although not real reliable but with so many pics, the tail appears more female. And mine had caruncles forming about that age.
Anyway, @emmading you should know soon enough. My Muscovy 1st did the drakes huff/hiss at about 3 1/2 months old. But he had caruncles long before that.