As someone with very little ability with graphics, but a fair bit in marketing, can I make a few textual points?
Your main marketing focus appears to be on the fact that you work at the customer's convenience - that you will come to their home or place of work and valet their car for them. I'd recommend re-working the first paragraph to really ram this home. Maybe (this has only taken me a couple of mins, so could do with some honing):
"Based in Exeter (?) and able to work across a large part of the county (you may want to tailor this more, but I don't know that part of England well enough to do it myself), WJ Valeting Services work to your schedule. We will come to your place of work, leisure, or even to your home, and valet your car at a time to suit you."
It needs a bit more work, but it puts your point across. It also means that you can remove the bit about Exeter/Exmouth from the "Bronze Valet" section, where it seems a bit clunky.
The whole leaflet is a bit busy. You ought to be able to condense the list of services somehow - after all, most of the services provide by bronze and silver (why not silver and gold?) are the same, silver has simply had some additions made. Could you say that silver valeting provides the full bronze service, with the addition of x,y,z? How about having the "about us" bit at the top, then a couple of pictures, and then the list of services below the pictures to break up the text?
On that note, how did you come to your pricing? Again, my lack of knowledge of cars may show itself here (it may be that you require more expensive materials for silver), but in terms of pure time spent, silver looks like poor value - at £30 for 1.5 hours for bronze, or £65 for 2-3 hours (but the emphasis here is on the 2; only half an hour longer than with bronze), I'd go with you every time for bronze, but would look elsewhere for silver. Were I you, I'd say that silver will take 3 hours, and consider dropping the price to £60 if you can afford to.
Probably most importantly, you have managed to drop your contact info from the most recent leaflet, and would therefore not get much business
I'd also consider changing the email address. Polishdetail could refer to car polish, or to people from Poland. If you can't get a web domain, could you at least get "
[email protected]"?
EDIT: You've added the contact details back in, fair play