AI photo trends: action-figure, MS Paint styles go viral; avoid sizing pitfalls

In May 2026, Instagram feeds are dominated by AI-generated action-figure portraits that turn users into boxed collectibles with tiny accessories. A newer trend, MS Paint doodles, asks AI to intentionally redraw a photo poorly like a child with a mouse in 1998. Other popular styles include 90s camcorder shots (with timestamps and scan lines), pet-to-human transformations, and roast-me portraits where the AI affectionately insults the subject. These trends rotate every few weeks, but the core problem remains: users create images outside their posting app, leading to sizing and compression issues.

Most AI tools output square or odd aspect ratios, while Instagram prefers tall 4:5 (1080x1350) for feeds and 9:16 for Stories/Reels. Uploading a square or large 4K file (8-15 MB) forces the platform to aggressively compress the image, resulting in soft, smeary quality. The fix is simple: crop to the target ratio before resizing, then compress the file to under 1 MB using tools like an image compressor. For profile pictures, crop to 1:1 at 400x400 minimum. Remember one key number: 1080x1350 (4:5) for vertical posts, which can yield up to 40% higher engagement than squares.