Across both matches, I'd suggest being a bit more sparing with dash attack. That is to say, mix more into your approach than just DD>DA. For the most part (with some noteworthy exceptions), it seemed to work fine for you in these matches, but a bit of variety will go a long way (SHFFfair, for example, against most 0% characters, leads into a decent combo/stagger via either FP or DT, dependent upon opponent's DI, fallspeed, and size. Additionally, it can be performed retreating.).
Aura Bomb. It doesn't do a lick of good from full stage in neutral. While it can be used to control space, using it at full stage let's your opponent easily camp out you and the projectile, or in some circumstances (like all of my playin' buddies can do seemingly on command) reflect it. You'll get more use out of it if you use it in neutral at short hop or platform height from much closer, thus forcing opponent's to either burn full/double jump, or go for a shield/reflect. Additionally, to improve pressure with it, SH>slidingAB allows you to move pretty far with a huge hitbox (though oddly, I still find this rather situational, despite it's awesomeness).
Fun fast faller trivia: usmash>RAB is a combo. The timing is pretty sharp though.
As a whole, more FP! aFP is a great way to set up free tech chases, and tricks like SHdair(1st)>aFP on hit or shield are pretty easy (this makes an interesting approach option, as it can be fast fall'd mid-attack, meaning you can force an early L-cancel if you miss or get cold feet.). Also, on a brief note of what I saw several times, when at 0%, you used DA>FP to start off, and then would follow with DA>FP, with the FP failing to command grab. As a suggestion, try DA>FP>SHFFfair>aFP, as this should set up a tech chase if it connects (which I think it is inescapable, but I'll have to double check) and deal... I think about 40% damage (roughly half of which adds to the Aura Meter).
You move fancy-like. That was fun to watch. There are a few tools in Lucario's move set that don't see much love from you. Everything has a use, and the more variety you exhibit, the better off you'll fair. And the less time your opponent will get to spend outside of stagger.