ok I have a few comments... first of all i thought you id a really good job in both of them...
Random Explosion
Pros: nice camera work, music was great, explosion was good also.
Cons: It needed a little more story line that just a guy setting off a bomb. The explosion could have been better.
Random Pop Tart
Pros: I thought it was really funny. VERY nice sfx on the Pop Tart.
Cons: I don't have any..
I hope I didn't sound to harsh on the Random Explosion.