Create a cute and colorful picture themed around a children's dinosaur club. Depict children joyfully riding on friendly dinosaurs of various kinds, such as a Triceratops, a small T. rex, and a Stegosaurus. The children are dressed in bright riding outfits, complete with helmets and smiles on their faces. Surrounding them is a lush, picturesque landscape filled with flowers and trees to create a sense of fun and adventure. This scene should convey the joy, friendship, and magic of a child's world where dinosaurs become loyal companions