Weekly Snape-ly Event #17

All the action posters for Deathly Hallows Part 2 have come out (along with many others) in high-res, so I figured that was an important bit of news. So here's all the action in order from most important(in my opinion) to least important:

I just want know... Why does Griphook have his own poster? Why not Luna, or Mrs. Weasley... or Lucius Malfoy?