E-commerce Site for Shirts, Coffee, and Mugs

I'm looking for an experienced web developer to create an e-commerce website where I can sell shirts, coffee, and coffee mugs.

Key requirements include:
- User-friendly interface
- Secure payment gateway integration
- Size guides for all products

Ideal skills and experience:
- Proficiency in e-commerce platforms (Shopify, WooCommerce, etc.)
- Strong background in UI/UX design
- Experience with payment gateway integration
- Familiarity with creating comprehensive size guides

Please provide samples of previous e-commerce projects. Looking forward to your proposals!