If you're posting an image on here, please remember to add a text description for people who cannot see. Blind people use the internet through screen reader software which reads text out loud.
The level of detail needed depends on the image, but generally you should try to explain whatever is important and relevant in the picture.
If you forget a description, just edit the post and add it in afterwards! The bot @PleaseCaption can remind you if needed.
More info at https://fedi.tips/how-do-i-make-posts-more-accessible-to-blind-people-on-mastodon-and-the-fediverse