Create a realistic and visually appealing cover for an online course module on "Unveiling Real Estate Client Profiles." The cover should feature a high-quality, photo-realistic image that strongly represents the diverse profiles of real estate clients. Consider using elements such as a collage of different types of clients (families, young professionals, retirees, investors) interacting with real estate professionals in a modern office environment. Include scenes of client consultations, property viewings, and negotiations. 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. --ar 16:9  --s 750