Not bad but....
It's your first attempt. Congradulations. And for a first attempt, it's really not that bad.
You probably know the flaws you have, but let me highlight them. The biggest one is definitely the voice acting. You have a bunch of pins of different ... back grounds ... I'll leave that where it is. But they aren't all Japanese. That voice flaping Japanese Dubbing Crap really shouldn't be made main stream. Working to try to fix what the characters say, planing the mouth movements to match the words, and the weird way the voices sound are all things you should fix in the future.
But it's definitely not bad. I feel guilty for murdering those bowling pins. Personifying them kinda makes me feel worse. :P But you did a good job for your first time, and I hope to see more videos. Good luck in the future.