Need to replace backround

I need five photos with backgrounds replaced and refined. Each image requires clean, natural-looking background removal and replacement, seamless color matching, and realistic shadows or lighting adjustments to match subject tones. Deliver high-resolution, web- and print-ready files in PNG with transparent background and JPEG with optimized color profiles. Attention to edge details, hair, and fine elements is essential. Please provide final edits with consistent style and professional polish.