Improve Shopify Luxury Fashion E-Commerce Site

Shopify Expert Needed – Luxury Fashion Website Improvement & Conversion Optimization
I am looking for an experienced Shopify designer/developer to professionally improve my existing luxury fashion e-commerce website, Maison Layāl.
The website is already live and has its products, branding and content. I am not looking for a completely new website from scratch. I need someone who can review the existing store, fix current issues and make it look and perform like a professional, trustworthy luxury fashion brand.
What I need:
Improve the overall luxury/premium look and feel of the website
Improve the mobile version, which is extremely important as most of our traffic comes from mobile
Fix any issues with the header, navigation, menu and cart
Make the shopping experience smoother and easier
Review and improve product pages
Improve product presentation, sizing information and call-to-action buttons
Properly configure international currencies and languages
Check international pricing and market settings
Review shipping settings and customer experience
Improve website speed and performance
Make sure the website displays correctly on different devices
Improve trust elements: shipping, returns, payment information, FAQ, etc.
Review the cart and checkout journey for potential problems
Improve the website specifically for conversion rate optimization (CRO)
Identify anything that could currently be preventing visitors from purchasing
Fix any technical or visual Shopify issues you discover
Brand direction
Maison Layāl is positioned as an elegant, feminine and premium fashion brand, specialising particularly in coats, faux-fur/fur pieces and winter fashion.
The website should feel minimal, luxurious, clean and trustworthy, rather than looking like a generic dropshipping store.
Important
I am looking for someone who understands both Shopify development AND e-commerce/fashion design.
Please do not apply if you only install Shopify themes without understanding UX, mobile optimisation and conversion.
When applying, please send:
Examples of Shopify fashion websites you have personally worked on
Before/after examples if available
Your experience with Shopify Markets, currencies and languages
Your experience with CRO
What you would improve first after reviewing my current website
Your estimated timeframe and price
The goal is to have a beautiful, professional and high-converting Shopify store that is ready for advertising and international customers.