What an interesting website... thanks for the link! It's nice to see online suppliers in the UK.
My new betta is doing well, thank you. He's got a fair few oddities including a short spine, 'compressed' fins, a dodgy ventral, a gill cover that doesn't 'sit' properly and signs that he had ammonia poisoning once in his life but here he is very healthy and active. He eats like a little pig -- but he refuses pellets so I give him Tetra brand Betta flakes, they have a whopping 48% protein unlike many other flakes (it seems many flakes have little nutritional value to them, which is a shame).
I only have a single photograph of him in which you can really see him...
I believe he is a double tail (er, lyretail) but it's hard to tell because he's very scrunched up in appearance, beautiful though. Not too keen on fingers!