"Detailed, high-quality map of Africa showing distinct natural regions. Highlight the Sahara Desert and other desert areas in shades of yellow and light brown, savannas in golden hues, tropical rainforests in vibrant green, and mountainous areas with dark green and brown tones. Coastal areas should be highlighted in soft blue, and label the main rivers, lakes, and mountain ranges. Realistic map style, topographic view, with clear color separation for each region, detailed but without city labels. High resolution."