You could do a critique on some of them/one of them ^^ /totallynotforcingyou
Alright, I'm not good at that but I'll try. XD
In The Spotted Ones some of the sentence structure is wrong and some of the sentences are forced and awkward. But I admire your creativity because that's a really original concept.
And in the Dragons of the Clans maybe writing more on how he found and killed the bull?
I like the name Naythok though, it fits the dragon well. And at first it says that Naythok caught a large buffalo, not saying anything at all that it was elderly. Then it says that he scattered them and caught an elderly buffalo, and I think mentioning that the buffalo was old in the first place would make it a bit better.
In The Dragon Orb you should consider giving the character more of an introduction in the beginning and not writing other stuff right away. And there's not much else that I can find fault with it, it's a pretty nice writing.
Hope this is what you expected, sorry it's kind of a short and bad critique. XD I'm not experienced with this at all, lol.