Excellent technical work on the install.
I'll try to be constructive on the design.
The most important thing to keep in mind is "The Message".
"The Message" is that you do vehicle wraps.
You get "The Message" across to people by making it easy for them to read.
Your design is not easy to read, because there is too much stuff distracting the eye from "The Message".
The front quarter panels, why does it say "Signs" when you are trying to sell wraps?
The lettering for the word "Signs" is broken up and distorted by the effects on the letters, and by the background intruding. Hard to read.
The picture of the guy wrapping the vehicle, nice concept, but poor execution.
Why is he wrapping towards the front of the vehicle? You want motions towards the back of the vehicle, always giving the illusion the vehicle itself is moving forward, moving forward is always better that moving backwards.
The guy himself has an arm growing out of his head, dark hair, dark shirtsleeve, bad idea.
Mustache needs a trim too.
Now, we reach "The Message", "Smoking Hot Wraps", you need to get yourself a real French Curve layout tool. That distortion is just not right, you grabbed the nodes and made sure to squeeze under the door handles, but it threw the curve wrong.
"The Message" is 2 different fonts. BAD!!! NO SOUP FOR YOU!!!!
I just can't go on, the backgrounds are just so jumbled, and don't make any sense at all.
Throw away those background fill discs, or give them to charity.
Dude, I know you are proud of your first wrap, and I know you spent a lot of time, and you even asked for help with the design, but you ignored everything you were told.
I read those threads, and seriously, you got design advice that is in reality worth thousands of dollars.
Hire a real graphic artist if you intend to be in the wrap business.