"Design a small garden in the corner of a house yard featuring a tiered waterfall cascading over natural rocks. Surround the waterfall with lush tropical plants such as ferns, palm trees, and colorful tropical flowers. The garden has a cozy and serene atmosphere, with greenery framing the waterfall and a peaceful vibe. Include a small stone path or sitting area, all surrounded by vibrant tropical plants, creating a tranquil retreat in a compact space."