Playful Yearbook Template Creation

I need a digital presentation template for an annual YouTube video yearbook for a doggie daycare. It should be fun, playful, and bright and colorful.

Requirements:
- 230-300 slides
- 20-25 minutes running time
- Photo placeholders
- Video placeholders
- Text boxes for captions

Ideal skills and experience:
- Proficiency in presentation software (e.g., PowerPoint, Keynote, Google Slides)
- Strong design skills for a fun and colorful layout
- Experience creating templates with placeholders for photos and videos

Please provide samples of similar work.