Jyoti, 
I'm sorry that I appear to be having an angry day but FOR FUCK'S SAKE, ALT TEXT YOUR IMAGES!
There are plenty of visually-impaired people on Mastodon, of all different levels.
If you follow @PleaseCaption it will even remind you if you forget!
Please, please alt text images and hashtag in #CamelCase so screen readers can parse the separate words.