Professional YouTube Logo & Banner Design

I'm looking for a designer to create a professional and clean YouTube logo and banner.

Requirements:
- Style: Professional and Clean
- Color Scheme: Green and Grey
- Design Elements: Open to suggestions (symbols/icons or character/mascot)

Ideal Skills & Experience:
- Expertise in logo and banner design
- Strong portfolio with professional designs
- Proficiency in color theory and minimalist aesthetics
- Ability to incorporate client feedback and suggestions

Please provide samples of previous work and a brief concept idea.