shadow photography

i have a sudden interest in shadow photography..hmm so random i wonder where it came from.its an art of its own and you get to capture images of people or any subject for that matter when the lights are pretty dim.the photography is quite spectacular i must say and most of the time it comes in grey scale..sepia like.
my only problem is i don't actually have a camera that can take such amazing photos..i mean sure i can edit the photos when am done taking them with my PHONE  but nothing quite looks like a well taken pro photo.here are some samples i googled that i really like..