He looks quite ruffled up and probably would benefit from a good molt. I'd say he's a mix breed of some sort, and if he is a Jersey Giant, he has a lot of leakage (the red on his shoulders). Do you know how much he weighs and perhaps a size comparison of hieght? Personally, except for the clean...
How old are they? They look to be about 4 months old, correct? They both look like pullets to me. She's just darker and it looks like she might have lost some tail feathers? Or perhaps the lowers are taking their time growing (thus causing the curl).
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Those wounds don't look bad at all. I would keep treating them though. I see some bruising (on chickens, it's typically green) around some of the wounds, but that will eventually heal as well. I would keep an eye on your Buckeye's neck because of what you said, but she may be...