That looks fabulous! I hope it tasted as good as it looks!
But, damn! That cookbook isn't available in the US until December. :(
I have seen these on Amazon but I don't have them, so I don't know if they are any good. There also appears to be a few other books in the series, so there might be a few options for you.
The Great British Baking Show: Love to Bake
The Great British Baking Show: The Big Book of Amazing Cakes