Welcome to the BYC flock ( a few months late)! We are glad you joined us.
Did you not end up getting chicks from Greenfire Farms? Perhaps you already know this but they only sell "unsexed" day old chicks and they do not sell all the breeds you listed.
Looks like maybe you went with a silkie and a couple buff orpingtons?
If you are really into Orpingtons, check out this site. They, too, only sell unsexed day old chicks, but they are gorgeous birds! http://www.thefancychick.com/
I decided to go with different breeds and found a local farm. I got 2 buffs sold as pullets. I also got 2 silkies. They are not sexed. They are 6 & 7 weeks old. Still not very fond of me despite holding them every day. I got them when they were only a few days old.