I think the first may be a Black Sex Link, he does have the green tail feathers, My grandson had named him Alexis, until he crowed then he became Alex.
The second one is a banty and has I believe what you would call a rose comb, he is little but that doesn't bother him at all when it comes to the bigger roosters, he will chase my Brown Leghorn roo all over the yard.
I have seven roos and am finding it hard to decide which to keep, so far everything and everyone are getting along. I have six hens laying and eleven that haven't started yet. As of two days ago one hen went broody and has nine eggs under her, I have no idea if they are fertile but we will see.