kudos on your first
I'm happy to see this animation on NG. personally I'd suggest more visual contrast on things like size and direction especially in your transitions because I was tempted to get bored from cut to cut. I never did, but keep expanding, you could be absolutely great.
I'm going to agree with Flank11 too. this is a great social statement for NG, and I FULLY support messages that encourage "Celebration"(title of that song), family love, positivity, appreciation of good parts of our world and all that great stuff.