How can I take great photographs like this?

 
It's easy.  Just follow these three easy steps, and refer to the photograph above if you get confused:
  1. Buy a camera (try a camera store).
  2. Buy a gas mask (try a military surplus store).
  3. Ask a lovely lady to model for you (I can't help you with that one...be creative).
  4. Send your completed images to me for expert advice (at absolutely no cost to yourself).