Keynote Presentation Redesign

I need a professional to reshape my existing 45-minute inspirational keynote presentation slides for a conference. The design should be minimalistic and clear.

Requirements:
- Enhance text alignment and fonts
- Improve imagery and icons
- Maintain an inspirational tone with a clear, cohesive story

Ideal Skills:
- Experience in presentation design
- Proficiency in design tools (PowerPoint, Keynote, etc.)
- Strong eye for minimalistic design and typography

Please provide samples of previous work.