Modern Minimalist Marble E-commerce Site

I need an e-commerce website for my marble company. The site should feature a comprehensive product catalog and customer reviews.

Key Requirements:
- Modern and minimalist design
- User-friendly navigation
- Secure online payment system (optional)
- Mobile-responsive layout
- SEO optimized

Ideal Skills and Experience:
- Proven experience in developing e-commerce websites
- Strong portfolio showcasing modern and minimalist designs
- Expertise in SEO and mobile responsiveness
- Familiarity with online payment systems

Please provide examples of previous work and an estimated timeline for completion.