Thanks for the compliment! Glad you liked it! Currently the images are stored elsewhere on a free image hosting site and referred through their direct link.

Sorry I don't have any special tricks to share :/. I feel at this point it would probably be better to rip the game world from the game and artificially make it feel like a panorama when viewing and moving.

Also this would probably imply heavy use of three.js if I wanted to offer that in the browser.