The method I used for the design:
First, I do hand drawing portrait of Snowden. I created it manual by hand with several types pens on paper. I try to make a unique style of portrait rather than just trace from photo on the web with software.
After I finish the Snowden portrait, then I move the work into computer with software. I scan the hand drawn portrait of snowden and process it in adobe photoshop.
I put a glitch text for the texture of the portrait. I think I will be good and match with the topic of security. Then I put slogan top to bottom adjusted with the composition and also the web link text.