Cool betta. Good job with the water changes. Funny, my betta isn't one of the prettiest ones out there either. I actually wanted to buy a white "retired show fish" from a breeder and while I was waiting for her to contact me, I went to Petco for ferret food of all things. And I swear I heard a little fish calling my name. Somehow I ended up in front of the bettas, which I NEVER do and one of them kept calling my name, looking straight at me and wiggling in that little cup! Oh he was ugly. The color of mud but beautiful crowntail fins. He had so much personality and I couldn't resist. Brought him home and with some good care he developed a little bit of blue to his fins, but still basically mud colored! LOL.
Aren't they the most awesome fish though! Good luck with your baby.