Matching WordPress blog with rest of site

Hi everyone, I’m in the process of setting up a WordPress blog and have one running on localhost using wampserver.
I am eventually going to have it online on a subdomain of my website (such as blog.domain.com). However I want to do all the setup, etc. on my PC first so I’m not wasting money hosting, etc. before it’s ready.

Anyway, my main question is whether anyone knows of a WordPress theme that is fairly similar in appearance to my website (Tom Foster Photography? I’ve tried having a look through but there’s so many and I don’t see anything incredibly similar. I know custom CSS can hopefully do a lot to fix this but I’d rather start somewhere close to what I hope to achieve if that makes sense?

Thanks very much for any help!