I found the above photos via Design Shimmer, one of my favorite interior blogs. I love the concept of light photos and light art. Would be a nice form of light therapy during the dark Norwegian winter.
The original source is Light boys, a company that specializes in light pictures. You can send in your own polaroid and get your personalized light photo shipped back home or you can choose photos from top international photographers.
I visited an art gallery in Bali called YOU NEVER KAN TELL, which also have some nice light artwork. The below photos are from this gallery. I regret that I did not buy one on my last visit and will definitely do on my next one. The gallery is located in Seminyak, close to The Oberoi
Photos: YOU NEVER KAN TELL