VS ROB:
First of all, (applies to both vids) your opponent wasn't particularly impressive, so it's hard to say how you would have faired against someone who would give you a challenge (both vids were 2 stocks, and you had a fully charged Fsmash kill -_-).
From what I saw though, you were pretty good with aggressive/defensive, though it kinda seems you didn't blend them much. By that I mean, you only really used SHLD/SHL when you were strictly camping, but not so much randomly or as an approach. I can't really say much besides don't spam reflector, if that ROB was a bit smarter he could've baited you into something, since at one point you stood there using it 3 times on the ground.
Oh and uh, lol @2:39, sniped.
VS Meta:
Don't use IAP at the beginning part of the stage. Again, if that Meta was a bit better, he would've punished at least one of them with something.
Yeah, that was short, try uploading a match where you lose or get taken down to one stock at mid-high percent.