They are most impressed by the albino Darwins and when I walk out into the sunlight and the colours really pop, people are completely gobsmacked. This effect overcomes the "ugh, it's a snake" in many cases. There is something mesmerising about colours that show up in sunlight, like the irridescence of water pythons and the glowing yellows of the albino Darwins. Gets 'em every time. Hooray for irridiophores!