Create a realistic and visually appealing cover for an online course module on "Technical Training." The cover should feature a high-quality, photo-realistic image that clearly represents a technical training session. Design the image to show a group of professionals engaged in technical training activities in a modern, well-equipped office environment. Consider using elements such as computers, technical equipment, detailed diagrams, and coding screens. Include visual cues like instructors guiding the participants, hands-on practice, and collaborative problem-solving. Use a sophisticated color palette that conveys professionalism and technical expertise, focusing on dark blue (Navy Blue), white, and gold. The style should be realistic and professional, with the technical training session as the focal point. --ar 16:9  --s 750