Hmm. That is a good question as I am also wanting to get my cocker ano'd lol. I was thinking of having the yellow be the base color (because it looks like a gold almost in his pics) and then having a green bloodsplatter effect. But I also like the design with the lines going everywhere through it, I believe you have a blue, blac, and white color scheme that is the same as what I'm talking about. If I go that route I would have yellow base with red and green lines through it.
I think you're talking about splash anodizing. I have a BPS Twister with a black base and a red and clear splash and a very early Fulcrum with a black base and a clear splash... That's the direction I'm very much leaning towards for the project gun or two I want to restore. It may be repetitive for my collection, but I like a black base with a splash on top. If I went with a two-color splash, I'd do green/yellow or blue/clear, I think. Other top contenders are a single splash that fades or is an acidwash (red/yellow would look sweet, i think).