Create a realistic and visually appealing cover for an online course module on "Best Practice Training." The cover should feature a high-quality, photo-realistic image that clearly represents a team of loan officers being trained in a beautiful, modern office environment. Design the image to show a collaborative training session with loan officers engaged in various activities such as presentations, discussions, and hands-on practice. Use visual elements like training materials, computers, and collaborative spaces to emphasize the training aspect. 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 the training session as the focal point. --ar 16:9  --s 750