Learn to create an intermediate-level origami bullfrog designed by Román Díaz in this 30-minute tutorial video. Follow step-by-step instructions to fold a charming amphibian using a 12cm x 12cm square of duo-colored paper for an attractive color-changed belly. Master techniques such as pleating, reverse-folding, and layer manipulation to bring the frog to life. Discover tips on paper selection, including the designer's preferred green Elephant Hide painted white or lighter green on one side. Perfect for origami enthusiasts looking to expand their skills with a fun and challenging project.