Add Grandma to Graduation Photo

I have a picture that needs a person to be added to the side of the person wearing a graduation gown. Your task is to composite the grandma convincingly into the shot, matching the lighting, perspective, and colour so it looks as though she was truly present on the day. my grandma has a medium build, you can put her in her traditional clothing as well.

She should be beside the person wearing the gown on the right side! (Empty side)

You’re free to work in Photoshop, Affinity Photo, GIMP, or any comparable retouching software—whatever lets you blend edges cleanly and balance tones without visible artifacts.

Turnaround is my top priority, so please let me know how quickly you can deliver.

Deliverables:
• 1 high-resolution, print-ready JPEGs/PNGs with grandma seamlessly added