Of course humour is down to the reader, but in terms of art, I think you've done a good job, these kind of comics are alot of the time about the reaction of the character, and your exagerrated expressions work well for that ^^ I liked the second one alot, possibly because I understand that situation :P (I actually like Naruto, but I know many who dont and are scared to say so at anime cons like Expo :P )