They look pretty young. I recently purchased my first two peacocks this year too and when I first posted pics of them everyone thought they were both male, but they were really young. Once they were about 10, 11 weeks old I noticed the one I original thought was a female based off body size and then leg and feet size (males feet are bigger and he was a little larger, this is how I picked them out) was starting to lose some of her barring on her wings. I was so disappointed to hear I had to males, but then once they got a bit older I realized that they were a male, female pair. Here is a pic of them when they were younger (about 8 or 9 weeks) and then a pic when they were about 10, 11 weeks old.
You can see just over a week or two how much barring my female lost where the male kept all his barring. I would say wait until they are a little older to be sure of their genders, otherwise it's anybody's guess. As I said, I was told mine were both male and it turns out they're one of each. Here is a pic I took off an early conversation here, maybe it'll help you.