To use this you can do 2 things: 1) Screenshot it and make it your PFP. 2) Go inside the project, go onto backdrops, right click on the image, click save image, make it your PFP.
This is only for @-breezy-bookworm- (Why would anyone else want to use it with your user on lol) Disclaimer! What you requested is quite detailed for a 500 pixel image. It might come up more pixelated when you make it your PFP Credit to Canva where I made it.