mmm, i am not an expert, cant tell you for sure. it is hard to get drugs nowadays, so I never tried.
but.
as far as I know, 'special mushrooms' change your perception in other way (point of view on situations, people, ties between the things etc). it is LSD that changes your perception of colours like this. :=) but its just theory! you need to hear what the folks with real experience will tell... @saboin, I am glad you enjoyed this little piece of shit art!