Emotional Video Editing: Newborn & Grandparent

I've recently welcomed a new baby and lost my grandparent a year ago. I want to create a heartfelt video where it looks like my grandparent is holding and interacting with my newborn.

Footage:
- I have several videos of my newborn.
- I have only a few photos of my grandparent.

I would like the final video to depict a realistic interaction between my grandparent and my newborn.

Ideal Skills and Experience:
- Proficient in video editing software.
- Experience with creating realistic video montages.
- Compassionate understanding of the emotional nature of this project.
- Ability to creatively use limited footage and photos.