First off, WTF is with the new emote?!
Secondly, those are really nice. I've gotten into it. The first one is Kaito, yes? I didn't really watch it. He's from the original VOCALOID, as opposed to Miku, Rin, Len, and various others (including the next) from VOCALOID2. The second is Gakupo, which I've never encountered. The third, of course, is Miku. They're all very nicely done and I wish to do something like it. Though hearing Gakupo, he sounds quite awesome. I need an actual male voice... Len doesn't count. Too much like a girl.
Fun facts about Gakupo. He's voiced by the Japanese singer GACKT. Hence the name.
http://www.vocaloidism.com/