Quick Photoshop Background Edit

I need a professional Photoshop expert to help me edit the background of a few images.

Requirements:
- Editing of 1 to 5 images
- Changing a background to a dummy image

Final Deliverables:
- All images saved in PNG format

Ideal skills and experience:
- Proficiency in Photoshop
- Experience with background editing
- Ability to deliver high-quality images quickly