Hold on just a minute, I'll upload a 1500x1500 version via a loophole.

[edit] OK, loophole exploitation is a success. The full quality png is something around five megs... Give me a minute and I'll see if I can upload a smaller file size full quality image.

[edit] it's not getting much smaller. I guess this is the smallest file size for the highest quality losless compression you'll be getting.

[edit] well, my 266,144 pixel wide picture was removed for an obvious reason. Since this image is also bigger than the 1280, I'm gonna have to fix it before The Man finds out it's dimensions are too large.