Three mockups are providing three different paper models utilizable for showcasing any graphics you name. These files present their models from an overhead view, but the paper style is distinct in each of them. One shows it almost laid straight on the surface. Another one displays a little curved at the bottom version.
The last file displays a paper that is bent out. Utilize the model that matches your project’s purpose better. Add your illustrations on its smart layer and edit them until you reach your desired results.