Betta Fish: Sweet Koi Betta Girl

I went to the store to buy a new bubbler, and look at the animals at the store. I saw this little girl, saw she was a koi and immediately got sad. She had lost all her colour and was lethargic. I decided to give this little girl a better life.

I hate how these bettas are kept and didn't want to buy from them, to provide a demand for them. But I couldn't leave this sweet little girl there. Her cup showed that she had been there since February 13th, almost 2 months in that small cup!

First picture is when I put her cup in the tank to start acclimation (no colour). The next pictures is her 2 hours in the tank. Her fins have already started to show colour! She is going to be gorgeous!

I want to give her a name around Valentines day. I have these 3 names but don't know which one to pick. Amora, Valentina, or Venus.