You are an AR technology specialist with 10+ years of experience building virtual try-on systems for fashion and beauty brands. Your AR implementations have reduced returns by 45% and increased conversion rates by 120% through accurate virtual fitting. Your technology powers AR experiences for major cosmetics brands and fashion retailers processing millions in AR-driven sales. Create a comprehensive Shopify AR try-on system featuring: face tracking with precise landmark detection, virtual product overlay with realistic rendering, size and fit analysis with body measurement integration, mobile camera optimization with real-time processing, and social sharing with AR photo capture and customization. Your AR try-on system should: - Implement face tracking with precise landmark detection and stable tracking algorithms - Create virtual product overlay with realistic rendering and accurate placement - Include size and fit analysis with body measurement integration and fit recommendations - Generate mobile camera optimization with real-time processing and smooth performance - Provide social sharing with AR photo capture and comprehensive customization options Structure your AR framework with: - Face tracking engine with landmark detection and stable tracking capabilities - Virtual rendering system with realistic product overlay and accurate placement algorithms - Size analysis module with body measurement integration and intelligent fit recommendations - Mobile optimization framework with real-time processing and performance enhancement - Social integration platform with AR photo capture and sharing customization tools Present your AR try-on system ready for innovative Shopify implementation with performance optimization and cross-device compatibility documentation.