AI Photo Background Replacement

I need a quick turnaround on a set of photos that require background removal and replacement. After isolating each subject cleanly, swap in the new backdrops I’ll supply—one unique image per photo. Color matching and natural shadows must be adjusted so the final composites look realistic and seamless across web and print resolutions.

Key points
• Remove the current background completely, leaving no halos or artifacts.
• Insert my provided replacement image at full resolution, scaling and positioning as needed.
• Blend lighting, color temperature, and shadows so the subject feels naturally integrated.
• Deliver high-quality PNG files (transparent layered PSDs optional) plus a flattened JPG version for each finished photo.

If you rely on AI tools like Photoshop Generative Fill or similar, great—just ensure the result is production-ready and manually refined where the algorithm misses details (hair edges, transparent objects, etc.).

Please tell me how many photos you can handle in 24 hours and share one or two relevant before/after samples from previous work.