Is this product professionally installed or is it meant to be a DIY? Also, do you have any similar patterns to the fleur de lis?

Our films can be installed by either a professional or a DIY homeowner. We have some great written and video install instructions here: https://www.decorativefilm.com/installation-instructions. We do have plenty of other patterns, but none exactly like this one. If you search "simglas" you will see other films in this category.