Hi,
Your site is good for a first attempt, much better than mine.....
I'd change the front page (to the same as the others with the menu bars down the left hand side) but have an opening welcome page without the big pictures or big text.
If you want to have your van picture on there with the door open tidy it up first (I'm a great one to talk with the most untidy van in the business!). Also you have different fonts types on the same page.
Apart from that I think its good,
Kind regards,
Jason.