Breed and gender of four week old chicks?

[zaapoole]

Hi I have six four week old chicks and I was wandering if anyone could suggest the gender or two of them and the breed of one! Thanks
The first one is a Rhode Island Red

This one was meant to be a Rhode Island Red egg but I'm thinking not because of the feathered feet and white feathers! If anyone could tell me the breed and possibly gender I'd really appreciate it

Thanks!

 

[Chicken Girl1]

To young to sex for sure but the RIR looks awfully rooish, the other one looks like a Cochin. I would post again around 6 weeks to confirm gender.