I really love how decor can create such different moods. Here's a favorite ceiling lamp of mine (via designformandkind). Combined with wilderness wallpaper in white, it'd be like living in disco heaven!
This huge photograph of dark, mysterious ocean waves with a touch of sparking sunlight is just SO AMAZING (sorry, I can't remember where I found the image...). I think the wilderness wallpaper in black lacquer evokes a similarly intriguing yet calming vibe. Or maybe I'm just feeling moody? :)