Wow, the second to last girl is almost my dream betta. My dream betta is gold body with red and black fins. She is gorgeous! You are so lucky! One day I think I'll have a sorority with some beautiful female imports! I really love the orange and white girl too, she looks like a Dreamsicle (an type of icecream treat thing).
I have a question about the "Koi" bettas? If they are marbles, isn't there a high probability that they will marble out and become one solid color, or their pattern will at least change? Thats one thing I would be hesitant about when buying an expensive marble/koi. They are really beautiful and I like the marble plakats the most, but I would be pretty mad if I paid $100 on a specific pattern just to have it change in a few weeks. Maybe it's the genetics of the marble that makes them so expensive? Do all marbles marble out or do some stay relatively unchanged?