I made mine entirely in photoshop and will continue to use photoshop since It's quite effective although not so good when it comes to perspective... @_@
But I definitely intend to work on a more serious map when more features and objects become available to the editor because right now, all you can really do is fiddle around with the basics and even then things are a bit twitchy. D:
I remember the scenes I made for Joshkrz when he was making a oddworld fangame. I still have them uploaded onto photobucket. Here's a few:
http://i686.photobucket.com/albums/v...g?t=1294319742
http://i686.photobucket.com/albums/v...g?t=1294319741
http://i686.photobucket.com/albums/v...g?t=1294319740
[EDIT]
Also, sligstorm. How'd you get all the other stuff? All I can only seem to get is mudokons, Mines and hoists...