Now, I understand this was an online match so you needed to be more defensive, and you had a solid strategy. But you missed plenty of opportunities to get KOs.
It was lacking grab's, quick jab combos, and uairs and bairs. You had some good bairs, but it makes for great retreating when he's close.
You did have a good fireball game though, it was very often, but used at the right moments.
At 1:57, B-throw!!!
Spacing got better as you went, and you had really good d-smashes in my opinion.
At 2:25, That's more like it!
You might want to take some chances for pivot grabs, because he was SHing all over the place.
Your little AD nairs were affective as well.
2:54, nice! And greaqt DI before that.
Don't go for all three jabs, I know it's hard to stop that quick combo, but you could easily but a qucik string move in there.
Great finish, in my opinion, once you have him in the palm of your hand you got him. Nice aerials and d-smashes. But you need to improve on approaches, SH aerials and SH fireballs to bait Wario's shield.
My adivce is in no specific order, but I'd just say focus on your approach.
My final thought on your Weegee, is that it's good. If you can become more defensive, with buffering, and powershielding as opposed to spotdodges. You'll be good. Those things take time so take it one step at a time. Also read up at the Luigi boards TOC and find the very well written guide on buffering. It's challenging, but from what I've seen, worth every second.