Pinhole exhibition by student at Lapland University

Passing through a few small exhibitions at university today I noticed a few small pinhole photographs. There is a clear focus on nature, which is something I want to look at in contrast to Manchester. The photographs are clear yet have a beautiful hidden and secretive tone, which intrigues me. The photographs have been placed in a light box and lit from behind, I can not tell whether the negatives have been copied onto acetate but the light flows through quite naturally like the sun would, and gives a poetic effect. This is something I have never thought to do but, I may try placing a light behind some of my pinhole images to see the effect.