Why was this a "Brilliant?"

What about it?

I understand Brilliants are given under specific conditions but I genuinely can't find why this was such a good move.

Guess the ELO (I'm white)

My first chess game of today went surprisingly well for how I normally play

What about it?

I think I did really well, do you think so? Anything I should improve? Things I should have done?

Neat comeback after a major blunder

Everyone else is sharing their first brilliant and I just got mine!

What about it?

I lost on time up a rook 🙃

An easy mate in 8 (black to move)

My opponent was so happy for getting new Queen

Somehow I played my way out of this one

"Won't somebody think of the sock abortions!"

Wow Lord, the emperor of memes

Echos, the weather paladin