I am surprised this has a rating of 3.00! Allow me to make that higher. I really like this because it's one of your zaniest pictures yet! The background may in fact be the best you've ever worked on. Yeah, I imagine you were meant to be talking about acid while doing this. I keep hearing more and more good things about that.
The nose is really showing off the Muppet-ness of this. I'm sorry if I keep mentioning that. I like how your head is divided into different color schemes. You get a true psychadelic feeling out of it. Good for you for being so creative!