Create a realistic and visually appealing cover for an online course module titled 'Different Types of Properties .' The cover should feature a high-quality, photo-realistic image that subtly represents the theme within the context of the American Mortgage system and Different Types of Properties. Consider using elements such as a modern Mortgage Office environment with Mortgage professionals (Loan Officers, assistants) engaged in different work activities, job options on a computer, or a professional networking event for mortgage workers. Use a sophisticated color palette that conveys professionalism and opportunity, such as shades of blue, grey, and white. --ar 16:9  --s 750