These are looking absolutely amazing! They look really realistic and overall allot nicer than the ones we have at the moment!
Also, you're ideas for both the lynx mane tips, and the fluff inside of the round ears sound really cool. Hopefully you find a way to pull that off, but of course completely understandable if you can't, since it might not even be possible for all I know x3
But, honestly, good work, and have fun with these as much as you can and enjoy yourself!