Modern Opencart Frontend Redesign

I need a skilled frontend designer to revamp the header menu and color scheme of my existing Opencart webstore.

Requirements:
- Modern-style header menu
- Color scheme customization
- Integration of key elements like search bar, navigation links, and shopping cart icon

Ideal Skills:
- Proficiency in Opencart
- Strong design skills with a modern aesthetic
- Experience in color theory and UI/UX design
- Attention to detail and ability to implement changes seamlessly

Please provide a portfolio showcasing relevant work.