Social Media Graphics Creation

I'm looking for a talented graphic designer to create professional and clean visuals for my social media platforms: Facebook, Instagram, Twitter, and YouTube.

Requirements:
- Thumbnails
- Video editing
- SEO optimization for graphics

Ideal skills and experience:
- Proven experience in social media graphic design
- Strong portfolio showcasing professional and clean designs
- Proficiency in video editing software
- Knowledge of SEO best practices related to social media

Please provide samples of previous work and a brief outline of your approach to this project.