i was thinking luigi s head will explode too.

Meh

Animation was decent, but the joke was a little too cliche and not really that funny. Ok job for your first animation.

ehh

Not bad but not badass i actualy called that number :P

...

would have been better if Luigi's head exploded

Well,

It was what is was, a simple fart animation which was mildly humorous, but needed more stuff to make it a decent submission. If you made this longer, have some sort of backstory or something like that, this would work.
6/10 for effort and the mild humor.