Compare and contrast these two fake trailers for a fictional movie called Dexter's Odyssey

For this spinoff of my videos of timbox129 (or timbox2.0 if you call me here) thread, let us compare and contrast these two fake, made-up, and fan-made trailers for a fictional Dexter's Laboratory movie that I've made up for now, called Dexter's Odyssey:

http://www.youtube.com/watch?v=y1yW_ac5pNw

The other one is an extended 3-minute version of the same trailer:

http://www.youtube.com/watch?v=arB9iDE5o4A

Well, upon seeing those two videos, how do you compare and contrast each of these two videos? Plus, what do you see in each video?