Remove Background from 30 Product Photos (Transparent PNG) — Footwear E-commerce

I need the background removed from 30 product photos (6 images each, across 5 shoe products) for my Shopify store. All images will be shared via a Google Drive link once we start. Requirements: Output as PNG with true alpha transparency — not filled with white or any solid color. Needs to be genuinely transparent so it works cleanly on any background color. Keep the product itself completely unchanged: same color, same shape, same proportions. No retouching, brightening, or altering the actual shoe. Add a soft, natural contact shadow directly beneath each shoe — feathered and subtle, as if resting on a flat surface. Not a hard-edged drop shadow. Clean, precise cutout edges, especially around laces, straps, mesh, and any fine detail — this is the part that usually needs manual touch-up after auto-select tools. Maintain original image resolution — no downscaling or compression artifacts. Please keep consistent, clear file naming (matching the original filenames or a numbering system I can map back to each product) so I can re-upload them to the right listings without confusion. Consistency matters: all 30 images need to look like one cohesive, professional set — consistent shadow style and edge quality across every image, not just each one looking fine in isolation. Turnaround: [add your preferred deadline, e.g. "3-4 days"] Before hiring: please share 1-2 examples of similar product background-removal work you've done, ideally footwear or similarly detailed product photography (laces, textures).