Check out these window display of graphics!
You can see that a portion of a window can be dressed up or an entire window for maximum affect.
Most of the time we use a perforated material by 3M that allows a full color graphic to be printed. The window perf material has an adhesive back. We peel the liner off the back at time of installation to allow for a wrinkle free, smooth application.
The window can be covered from the inside.