Use a sharp chef's knife and cutting board to cut the watermelon into 1-inch thick slices, ensuring clean, straight cuts.
Arrange the watermelon slices vertically on a large serving platter, stacking two or three slices to create a layered effect that resembles a cake or tiered structure.
If desired, add additional colorful fruits or garnishes between slices to enhance visual appeal and flavor contrast, ensuring they are evenly distributed.
Optional: Decorate the top with mint leaves or edible flowers for added color and fragrance.
Slice the assembled watermelon dessert into individual portions with a sharp knife, revealing the vibrant, layered interior.
Serve immediately for a fresh, juicy experience, allowing the natural colors and textures to shine.