previewing hair colors

Hi,
This post is intended for people interested in coloring their hair,
but who would like first to get an idea of how they would look.
I'm a graphic designer, and for fun I started taking photos of friends,
and changing their hair color. Well a number of people seemed interested
in this, so I decided to take a survey of who thinks it sounds like a
good idea. Depending on the response, I'll offer it online.
I can make almost any imaginable shade from the original photograph,
as the samples show. You can see them at www.trydye.com, and give
some feedback if you want.
Have a good day,
Lewis