Congratulations! Maybe you could post it in the "game analysis" forum. I'm really curious too because tbh it looks like a blunder to me :D (But I'm a random bozo who started playing this summer, so, y'know, grain of salt.)
It's not a blunder for sure because there was a night on e4.
This move opens the d file for a queen attack but the white knight which was there was too dangerous for black as is fork the black knight and bishop.
So removing the white knight and maybe the engine thinks it's brilliant because it's a very risky move.

Made my first brilliant move today.

I really don't understand what's so brilliant about it but hell... I'm making this as my new Desktop picture and put it on the wall in my living room.
The Scandinavian defense brought me to this move and I would like to know why it's brilliant because I didn't get it.