Prompt
"Generate an image of a diverse and expansive landscape representing Western North America, featuring a combination of its notable geographical elements. Include the rugged peaks of the Rocky Mountains, the Sierra Nevada range, and the Cascade Range in the background. In the foreground, showcase a serene scene with the Columbia River flowing through a lush valley, with a glimpse of the Pacific Ocean in the distance. Incorporate elements of the Mojave and Sonoran Deserts, such as cacti and sandy dunes. Add iconic landmarks like the Grand Canyon, Yellowstone National Park, and Yosemite National Park. Depict major cities like Los Angeles, San Francisco, Seattle, Vancouver, Denver, Phoenix, and Las Vegas with their distinctive skylines. Include representations of the region's varied biomes, such as tropical rainforests, grasslands, and mountainous terrains. Use a realistic style to bring this vast and varied geographical region to life."