Render a landscape scene in a SketchUp style that includes a Koi pond, a gazebo positioned on varied terrain, a fountain, and a bridge. The Koi pond should have clear water with colorful Koi fish swimming. The gazebo, situated on a slightly elevated terrain, should be elegant and blend seamlessly with the natural surroundings. Add a beautiful fountain near the pond to enhance the tranquil atmosphere. Include a charming bridge over part of the pond to add visual interest. Surround the area with lush greenery, diverse flowers, and detailed textures. The overall scene should evoke a sense of serenity and natural beauty