Okay, so. Let's talk about the Loki and Draco picture above. I mean, Siriusly, that would be the perfect cross over. Okay maybe not the best, but still good! Just think about.... Draco would be Loki's second in command and-. Okay, maybe this wasn't a good idea. Whoops.
Sirius looks annoyed with Remus telling him what to do, but doing it anyway because he wants the map to actually work. James looks confused yet trying to figure out what Remus is saying. Peter just looks scared because now they might be able to see EVERYONE at Hogwarts, which can interfere with "the Dark Lords plans". Remus looks tired, and like it's the night after a full moon.