I really like this! For some odd reason, WW2 is one of my favorite history subjects, but ah well. And not to be a smart mouth, I beleive it's called a Panzer tank, or Panzer-shreck. (I know, bad spelling, I'm not German so bare with me..)
Fantastic little sampler of what you can do with Lego in the WWII theme; great job with the story created here (though I thought the title was a reference to the cliffside jail scene in Pirates of the Carribean) and I'm impressed with the overall setup and construction of the models.