It would be great if a customer can click on a image, and choose the design he want from the dialog pop up.
If you want to change the example text, you can click on it and change whatever you like, but when you want to change the example image you have to use the top menu. I get a few phonecalls from customers a day who can´t change the example image now.
This is the best suggestion I've seen yet!
This is possible through upload zones.