LOL. I was surprised to see my poster here. haha.
That my dear, is called as bobble head.
I think this tutorial is quite easy to understand, you can always ask me if you need any help with it. ^^
-http://www.asianfanfics.com/story/view/303309/48/indesign-building-your-foundation-graphic-graphics-original-poster-tutorial-workshop-tutorials

anyway, good luck. ^^

bubble head :) you can look for tutorials here I'm aff or jusy google it

i seperate head and body and make the body smaller (so, first everything is very tall because otherwise, well with me, it will be a ty quality)

They swapped head and use vectors :)