Background Replacement with Gradient

I have a set of photos that need their current backgrounds removed and swapped for a clean, studio-style look. After the cut-out, I’d like each image placed on a custom background—specifically a solid colour or a simple gradient that complements the subject. You may choose the exact hue and gradient direction once you’ve seen the photos, but the final result must look natural, with smooth edges around hair and fine details. Please return high-resolution PNG files (background baked in, not transparent), along with a layered PSD so I can tweak colours later if needed. Let me know how many images you can process per day and show a sample of similar work to ensure we’re on the same page for sharpness and colour balance. Budget: USD 15–25