Create a realistic and visually appealing cover for an online course module on "Step-by-Step Guide to Buying Real Estate." The cover should feature a high-quality, photo-realistic image that represents the process of buying real estate. Consider using elements such as a sequence of steps or stages (searching for properties, consulting with agents, signing documents, receiving keys) in a modern and organized layout. Include visual cues like property listings, contracts, keys, and happy clients. Use a sophisticated color palette that conveys professionalism and opportunity, focusing on dark blue (Navy Blue), white, and gold. The style should be clean, minimalistic, and slightly futuristic, with no characters in the foreground. --ar 16:9  --s 750