I love
Kenneth and
Alan for cats/kittens, they make me laugh.
Kenneth is a bit dorky and
Alan is such a standard 'middle aged bloke' here in the UK (I've known a few Alans in my time and they've all been lovely, down-to-earth guys).
Conrad is ok.
Anna's a sweet name, but I do prefer
Josie for a cat, it's very cute and it goes well with
Lydia.
Your cats are adorable btw,
Lydia's little face is absolutely precious and
Josie looks like she's a bundle of mischief. If I got a cat again, I think I'd get a black one too.