Opencart Homepage Design Tweaks

I'm looking for some minor design adjustments on my Opencart site's homepage. The focus will be on the header and navigation, as well as the banner and main content.

Key Requirements:
- Proficient in Opencart platform
- Strong skills in web design
- Experience with tweaking eCommerce site layouts
- Understanding of user interface and user experience principles

Please only bid if you can show relevant previous work.