You can start by picking a key scene or character that represents the essence of the comic. Use image editing software to crop and resize it for the right dimensions.
No, typically GI Joe doesn't have backwards thumbnail in the comics. The character designs are usually consistent and don't feature such an oddity. Maybe you're confusing it with something else?
The Canva origin story is quite interesting. It was founded by Melanie Perkins, Cliff Obrecht, and Cameron Adams. Melanie had a vision in the classroom where she saw the need for a more user - friendly design tool. They started with a focus on making design accessible to non - designers, especially for things like school projects and small business marketing materials. Their platform grew gradually, and now it has become a very popular and widely - used design tool around the world.