It's worth being in the portal, comparatively.
People have difficulty understanding the concept of randomness, and random humour isn't in range of everyone so just be careful if you are going to do a series like this. It just feels unfinished, a big blur of random things people that people can't relate to.
Try Adding some normality, then random things popping out will be much more random and funny with the sense of normality already established.
Sound ---- 2/2
Good enough Effort, the music is fine but it only fills the silent space and does not suit the movie in any particular way. It's not synched to anything either, which is kind of a bummer but it's not that long of an animation anyways so nothing detracted for the sound.
Graphics -- 1/2
I must say, a Wacom tablet would greatly improve your work if you plan on being serious about this sort of thing. With a mouse, it looks fine, once again though there is just not alot to look at because it's so short.
Randomness ( In place of Story ) -- 1/2
Sprite cows dropping, some dude surfing? Skateboarding then grinding down the rail? It feels kind of empty without some character we can relate to going, "WTF IS ALL THIS CRAP? WHY IS THIS HAPPENING!?" but all in all, it was fairly strange.
7/10, 2/5 You should redo it, or make another, far longer and with a character newgrounders can relate to (Obnoxious Prick, Nervous High School student you name it.) Then Resubmit.
If it was more fleshed out, I'd give it a much higher score.
My Grammar Blows.