IMHO, I think the purple needs to be a bit duller, maybe play around with it and see if it comes off good. I mean that pic hobbs posted seems pretty good on the purple, so it might be that the purple is just too bright, or I just don't like purple

EDIT: looking at the pics posted a bit more, probably make the purple closer to the blue shade instead of the red, maybe try giving it an ultraviolet look like it's just barely visible, yet still look alight and purple. Again, while the final say is yours, I just think that the purple could be a bit better.