Haiku is a simple structure. You have grasped the simple everyday premise.
I do like the acerbic and unusual in a contest of this genre.

I really enjoyed this. Very simple, but you captured the meaning well. For me the last line is perfect.

Cute and timely message. Really liked the tone of the ending for some reason.

sounds like me during finals. haha.
I like this though. simple & to the point but can be described in the minimal characters!!

I really enjoyed this, though the third haiku begins and ends with 4 syllables instead of 5. I won’t count off on your grade though, because like prosefairy said, that last line works. ;-)