Lush Spooky Cover
Just in terms of sheer originality, the cover of Spooky by Lush is one of the iconic album covers of the 1990s.
When I think of how many times I saw this in record stores, it makes me wonder how many people know how good the album was and how original their sound was. Lush were knocked for having a Cocteau Twins sound, due mostly to having Robin Guthrie produce the album, but the songs were strong enough and the band were accomplished enough to rise above such criticism.
Anyway, here's a bonus--a poster of the album cover combined with other elements to promote an EP.