Benji sounds like my little VT boy Sho. He is primarily turquoise, but has blue, white and black scales and his fins are green, blue, pink, and white. In certain lights he can take on a reddish hue, or a blue/green hue. His eyes are black. I'm going to take some pics of him today just because I want to update on him ^__^
I also have Zale and Heliotrope, two purple reds. Zale is another of my VT babies and Heli is a HM.
And just found a pic of Sho:
I love love love multicoloured bettas ... like marbles, you never know what colour they'll be next :D
Sorry for overtaking the thread! But I just thought of my little delta boy Pierre. He was a koi marble boy, and had some awesome colours going on :)