Greg -
Did you do those photo shops yourself?
My opinion - It doesn't look like it was put together by a professional graphic designer, but a company that knows how to do vinyl installations. That is one of the main issues with companies that do "wraps" and "lettering" on trucks. They're either good at designing or good at something else. It's hard to find a shop that is great doing both. If I had both options, I would start looking for a new shop that makes something more memorable. Some shops will do simple things to see if you understand the importance of a good banner, meaning they figure that you don't know any better and do a simple low end design, so they spend less time creating drafts.
You're trying to appeal to your clientele, think who that is, and figure out what appeals to them. I'd also keep it down to 7 words or less, drivers don't have time to read every square inch at 25-55mph while talking on their cell phones.
Some of the best billboards have the least amount of words and go directly to the message.
$25 a room
Phone
Website
Add graphic(s), but don't go overboard. "A picture is worth a thousands words..."