This is so beautiful! A lovely calling card! Although if it is going to be a bit smaller you may want to darken the writing in the bottom right a little bit or you may loose it? I don't know, but it is amazingly beautiful!
I use different brands. My favorite is Fabriano but I stopped using it recently because I ran out of it and they stopped selling it in the Philippines. I also use Arches, Canson, Clairfontaine, Waterford and Daler Rowney. I try whatever I can find. *u* I used Clairfontaine for this one but it's not a very good paper because it doesn't absorb watercolor very much so I used it for gouache instead.