As for the Manga style, Wikipedia covers a lot of ground, but I'm not sure it touches on manga-inspired web-comics. I've already covered who is elegible for this contest.
As for who qualifies for this contest, anybody who does a manga comic, or feel they don't but have been told they do. Do what Mazoo hit on and try anything but what you are doing now.
To answer those of you who don't do manga but want to do a ten paged manga themed comic, go ahead and do that, I'll see if Chuck or somebody can donate a third DDvol1 as a prize. If you want to win that contest, throwing something together that basically just makes fun of manga story conventions or manga-inspired web-comics won't do it for you. They need to be just as well thought out and planned as some of the stuff I'm already seeing come back for the Sprite contest.
To all you cerebral Manga fans reading this thread and getting ready to put your insult on… I'm not doing these contests because I hate Sprites or Manga. I'll read a story using just about any visuals, as long as the story's good. A while back a lot of people slammed a guy who goes by the name Breezy for his art on his earliest comics, totally dismissing that a couple of them were the best written stories ever to grace Drunk Duck.
Before McLintock! there was Nimrod and later Beck. The art was rudimentary, but the stories were brilliant.
As for my avatar… it comes from the latest incarnation of my comic's title character, Gene.