What can Nano Banana 2.1 actually do?

What can Nano Banana 2.1 actually do? 29 images across 18 slides: portraits, product scenes, image edits, typography and multi-subject compositions. Here's the visual breakdown — including a one-line prompt fix for small things. 🧵 #NanoBanana #GeminiAI . Slides: 1 - 4 https://t.co/M6VVKy0Hzf