Don't double jump so much. You didn't get punished for it much in those matches, but someone who knows how to DD and read double jumps will destroy you for all the pointless double jumping.
Don't smash so much. You use usmash way too much, and the others should be used to finish combos, edgegaurd or when you propperly read an opponent, but you just smash into their shield way too much.
Shine more. Some times you seemed to be l canceling to shine correctly after your aerials, but more often than not, you weren't following them up correctly. Always lcancel to shine after hitting an opponent's shield.
SHL WAY MORE. Can't stress this enough. Idle is not something Falco should be, ever. If you're thinking about doing nothing, SHL instead. And on the approach, you just about never SHL either, so you're just not using the laser enough.
Solid foundation, just work out your bad habbits and you'll be well on the way to having a good falco.