Rayman Discord Profile Picture

Taken from the Mario + Rabbids: Sparks of Hope | Rayman in the Phantom Show DLC trailer

To upload and use Discord Pfps you need to login to Discord.

To upload and use the Rayman Pfp you need to go to the "user settings" page, under the second tab called "user profile" you should see an option to upload an avatar or change bio.

You should click "change avatar" then select the image you just downloaded from this website.