This is my first meme, pls support

Wheres the joke

To be honest, I don't quite get the joke here. I'd appreciate it if you could explain it a bit.

this is your second meme

I honestly cannot tell if this is an antimeme or not

Where is bad joke?

i dont understand

Y'all in the comments really don't get it
OBViously, the left Rick Astley is larger in size than the right Rick Astley
(i'm kidding-)

it looks like it