I think this is a pretty good first attempt. I liked the joke at end!
A few suggestions/comments are:
The beginning shot is a little long. The stick figure just walks across the screen—It's boring. I'd make that shot shorter or add something into the shot to make it less monotonous.
The audio for the car comes way too early.
I don't think the 6 sec credits are necessary on a piece this short. I'd just sign it in the corner.
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This had a solid set up—I hope you keep at it.