Some things I noticed:
-You use Zelda's smash attacks FAR too frequently. Don't use Zelda's fsmash, unless your opponent is not at the liberty to counter you for the attempt.
-Zelda's spot dodge is long and inconvenient for dodging the close attacker. Fine to use it for Falco's lasers, and illusion, but not for close combat. Any good player would wait and punish you for the major lagtime it has.
-You also use Zelda's grab too much. Zelda has a grab that is a long time in coming and is easily punishable. Only use it when you can't miss.
-Zelda's WD is not useless. Her waveland is even more important for mindgames and moving quickly around the stage. I saw you do this a couple times, which is good, but you need to do it more.
-You don't seem to recognize the opportunity for a Lightning Kick. When your opponent charged you with a dash attack which you shielded in both matches, you would grab or something. Jump cancel into a lightning kick ftw.
-Know that Zelda is a bad comboer, except at low percents. You can afford to try grab-initiated comboes when your opponent has low percent, but later, you'll want to just lightning kick to punish.
-Your opponent is horrible. Well, OK, that is a bit harsh, but let's just say that he would be the laughing stock of the Falco boards. He wasn't shorthopping lasers like any good Falco should, and I laughed out loud at his sorry attempts at WDing.
In conclusion, I'll say that these mistakes we've pointed out are the result of foul training. You need to play better people, because these bad players are the ones teaching you that what you are doing works. You see it works, and it becomes a habit, which is NOT a good thing. The thing is, it simply DOESN'T work. I also recommend watching vids of the best of Zelda players.