Cinny is a very handsome boy. This is one of thefirst close ups I have seen of him. He is very pretty. I think his neck looks ok but could see more if her were out in natural light, and maybe under saddle. If there is incorrect neck development, it would show more under saddle.
Good for you for taking in the little beasties. Our local shelter is overrun with kittens this year. For some reason, there are more than normal this year. I have two already, sowont' be taking in any more. One of them is sitting on my forearms as I type this, making it hard for me to type. But I am a crummy typist at best, so who cares.?