yeah, but there's a million one handed fans, but there's differences and giving them separate names helps define them, like carnahan, smear, etc...
also, yes it's named after Joe Carnahan.
hm....it's okay, but I'm pretty sure that the halo 3 symbol is copyrighted, but for your own design that's fine.
As for the design it looks alright, kind of pixelatted for some reason.
I don't really agree with the fact about videos being sold for 30$ or PDFs etc. It's not just the production cost, but alot of time and effort goes into creating such tricks and moves and the fact that these must be practiced, improved upon and then filmed brings up the value.