• Up-to-date specifics for each platform, even down to ad types and grid crops.
• Tips and safe zones included for Stories, Reels, and Banners.
• Realistic commentary on how platforms crop or compress images.
• References and resources pointing to further reading (nice touch).

🔧 Suggestions for Improvement

• Add a summary table at the top with all key image sizes (maybe in landscape format), like a “cheat sheet grid” for quick reference. This would make it super-shareable.
• Use consistent formatting for section headers and image types—some use colons (Instagram Reels Sizes:), others don’t.
• Highlight “safe zones” consistently (e.g., Instagram Stories safe zone = 1080×1610 px), maybe even bold those values.
• Clarify file size limits per platform in a visual block or sidebar.
• Add a downloadable PDF or Google Sheet version for ongoing team use.
• Include platforms like Threads and Mastodon (you teased Threads at the end with “THREAD…”, so maybe it’s coming?).

🚀 Optional Enhancements

• Image previews or diagrams showing safe zones and aspect ratios visually.
• Callout boxes for platform-specific quirks (e.g., Facebook cover photos shifting on mobile).
• Interactive or embeddable version (can be done via Notion, Airtable, or a simple HTML/CSS layout).