I've read that Kaffe Fassett suggests, and I'm paraphrasing, that if a colorwork scheme isn't coming together to just keep adding more colors. I've used this in quilting and find it be very useful. The equivalent in knitting, it seems, is if your project isn't working just keep adding more yarn.
That's it. Just keep piling it on.
And on and on.
Until something like this seems downright restrained.