I am a school photographer. I have some graphic of some of the products we sell. Our order envelopes are 8.5x14 inches with a tear off envelope. Both front and back need to be done. I have some graphics that must be on the order envelope I can provide. I'd like something to appeal to young parents. I have many images of children that can be used. Most have no backgrounds. (PNG files) I want something that someone will take notice of! The envelopes have a slight sheen when printed. Not glossy, but not matte either. If this works, I'd like to have matching posters. Matching the graphics, not the wording too.