Here's a pair of them:
Aussie Hulk Acan
vs.
Aussie Ultra Rainbow
vs.
The "brown" in the hulk has been getting more purple gradually, and the rainbow has yellows, pinks and oranges around its mouth when fully inflated. I knocked it with the mag-float prior to the picture unfortunately. It is completely missing the sporadic teal stripes around the edges. I would recommend trying the Aussie Ultra Rainbows #2 perhaps, in hopes of a more pronounced "psychedelic" look.
I think you can get a decent comparison of his pictures vs. 14k phoenix 250w bulbs (my pics).