Hi and welcome
Several appear to be bantam cochins or crosses of them. I'm not seeing a lot of evidence of silkie breeding, but I'm no expert.
No 2, 10 and 11 are looking like probable cockerels at the moment but they are a bit young to be sure and others may be slower developing. Give them another few weeks and post new photos then.
I'm guessing they were just young chicks when you got them as they don't look much older than 4-5 weeks.
Several appear to be bantam cochins or crosses of them. I'm not seeing a lot of evidence of silkie breeding, but I'm no expert.
No 2, 10 and 11 are looking like probable cockerels at the moment but they are a bit young to be sure and others may be slower developing. Give them another few weeks and post new photos then.
I'm guessing they were just young chicks when you got them as they don't look much older than 4-5 weeks.