We designed the booklet for our ep in photoshop; Here is the front. The tree was something I drew, the band name graphics a friend did, the font for the ep title was pulled off the 'net (1001freefonts.com or something like that) and the background is just some texture I found on google images and manipulated a bit...
So...not as exciting or complicated as some of the stuff above, but fits the style I think: