UI/UX and Branding Overhaul

I'm looking for a comprehensive redesign of my product's UI and branding.

Key tasks include:
- UI Improvement:
- Redesign the chat screen with LLM
- Update the color scheme to high contrast and minimalist

- Logo Development:
- Complete redesign of the existing logo

- Branding/Marketing Elements:
- Create a professional presentation
- Edit a promotional video

Ideal skills and experience:
- Strong background in UI/UX design
- Expertise in logo design
- Experience in creating branding materials and video editing
- Ability to work within budget constraints

Looking for someone who can deliver a cohesive and modern look that enhances user experience and brand identity.