Flutter Ecommerce App UI/UX Redesign

I have an existing eCommerce Flutter app that needs a complete UI/UX overhaul. The aim is to enhance the user experience, with a specific focus on beautifying the app's aesthetics. All existing pages and functionalities will remain unchanged.

No of pages - All common pages for an e-commerce app (Home / Products Listing / Product Details / Categories / Profile / Settings / Addresses / Order History / Payment / Cart / Search / Refunds / Filters / )