As an established web developer with over 10 years of experience, I have successfully delivered more than 500 projects, many of which are similar to what you're looking for. I specialize in using HTML, MySQL, PHP, and Website Design to create efficient and user-friendly systems. Moreover, I am well-versed in Laravel and CodeIgniter frameworks that will be instrumental in creating this artwork management system with complex functionalities.
With respect to your project's specifications, I am confident in my ability to bring them to life. My expertise in database design and optimization will ensure that the system can handle large amounts of data smoothly without compromising on loading speed. Furthermore, my proficiency with JavaScript is invaluable in creating a sophisticated interface such as the sliding calendar view you're looking for.
Aside from technical skills, my commitment to 24/7 availability ensures that I can promptly respond to any questions or concerns you may have throughout the project. Open communication, quick turnarounds, and delivering high-quality results are top priorities for me. So, if you want your artwork management system constructed with precision and finesse, let's work together!