Honestly there worth the money. Only like 30 bucks shipped and you can wash them and not have to worry about your helmet paint chipping. I got the clown and the black and white skeleton. I'd stick with 1-2 maybe 3 colors. Any more than three for me was too much. If they keep the look simple its nice but when they go in a lot of detail its hard to find a nice one in my opinion. I think a straight orange or black would look cool too. Its all your opinion so don't let me talk you out of a really detailed one. Bottom line I think there worth the 30 bucks.
I'm taking pics of my bike, these skins, and for sale crap tomorrow if I have time and i'll post one if I do.