So overall, this is pretty awesome! The energy is great. Though I can tell you haven't been doing animations for too long, so I can give you a few tips. Just keep in mind that I am not an animator myself
-Your pronounciation could be better. I'm able to make out what you're saying, but it is a bit hard to understand
-I think drawing with a thinner brush makes you look more like you know what you're doing. (I'm not saying you don't :))
-And lastly, adding some background music can help you out, but make sure it's not too loud, as it isn't the centre of attention