The poster, as with many Dangan shows, makes things clear. The details of everything are at the bottom, the main images are of the two stars of the show whilst little inset pictures are there to show some of the others on the card. There's nothing particularly unique of ingenious about the design but it works in a simple and straight forward way whilst also indicating "our main event should be good, look at the men involved!"
It's not the smartest poster going but we like it.
(Image courtesy of danganboxing)