That is one AWESOME looking van! Love the colour, and the font of the lettering. When you show up the client is going to KNOW they hired someone that does good work!
The only thing you might want to consider is the back winders. I was going to put pics like that on my back door. They do show what we can do. However, as was told to me, it sends the wrong message. It says " I go into beat up places and clean carpets" rather than the image sent by your side picture "I go into the best homes in Kentucky and I care for their carpets". 2 different messages.
If chicks were attracted to carpet cleaning trucks, yours would be a electro magnet!