Well, the start of the match was your typical "well, that's just cause your opponent read you like a book" thing. But after that.
2:27 Falcon jumped. Why did you ledge hop a nair in that situation? This time you got away with it but....
2:34 You did it again. He wasn't even close to you, you just did the nair as a reflex. Uair would've just torn through him and landed you a free grab (in addition to you not getting hit, which is always a good thing.
2:44 Well, that was a pretty bad situation anyway, but ledgehopping an airdodge is typically not a good idea when the opponent is just voluntarily dash dancing outside of his own range anyway. It's too easy to just punish on reaction. Wavelanding or even just doing an empty ledgehop here would've been better (and the empty ledgehop would probably throw him off too)
2:46 You had already used your floaty B so I don't know why you did it here. Your best bet would've been to wait and try to hit him with your up B straight off the bat instead of using that side B at all.
2:53-3:07 React faster with your tech chases. You waited such a long time after watching him tech, when a faster reaction would gurantee you another grab without him even having the CHANCE to escape given the position you were in. And don't tech chase with untipped f-smashes (or f-smashes AT ALL at such low percents really, unless there's nothing else that can reach in time or something)
3:16 Aw come on man! Tip your fairs! That was a great combo opportunity that would've easily turned that situation around if you had just tipped that fair.
3:17 If you're going to tech chase with f-smash, at least do it right. You saw that he was tech rolling away and even chased him, but you chased him way too far if your plan was to f-smash and as a result not only were you spaced incorrectly for the smash itself, but you even couldn't get it out in time.
3:43 You go back WAY too far man. Do a smaller wavedash or just an empty pivot. You miss easy ledgetraps because you moved too far away from the ledge. This happens a lot in the video.
4:19 OMG that would've been a perfect uair moment. He was in the perfect range to get tipped and had no second jump. Q_Q
4:33 You saw it hit, why'd you shield? Or did you just hold it too long from your L-cancel (if so...you need to work on that. Being ABLE to move as fast as possible after attacks is essential). It could've been an easy combo from there (uptilt, grab, another tipped fair, whatever you feel like doing really)
4:34 Another f-smash tech chase that didn't work because you spaced improperly...work on that.
4:36 It might not be obvious, but if you had gone with a uair there instead of going for a second fair, you could've beat out his knee. Though in general throwing out that first rising fair when you're not 100% sure it won't whiff is a bad idea.
4:43 Well that was a free grab but you went with a fair (which is okay, problem is that you didn't tip the fair...again)
4:46, okay you did tip the fair...but you retreated instead of pushing forward. You could've linked a second tipped fair or just fast fell and try to tech chase, but you just let him get away instead.
4:47 Again, why the f-smash? And especially at that range? (I mean that would've only hilted even if it DID hit, and Falcon is only at 74% anyway. Just go for a grab or uptilt instead of trying to hit him straight back into the middle of the stage)
4:49 YAY you did the uair counter! But you waited so long to follow up after landing it. Had you done the fair a little earlier (or just tipped it, either would've worked) you could've continued comboing from it. And even after you dropped the combo, you could've at least not waited so long for the tech chase (which is what caused you to miss it.)
4:50 By now it should've been obvious you're not going to get anything guranteed out of this. At this point you should've just given up on the tech chase and get ready to react to what he would do AFTER the tech roll.
4:56 Why wavedash back? And again, why so far? Had he teched in place or tech rolled away he would've gotten away for free, no questions asked. You should've simply walked (or pivoted) backwards after you saw he didn't tech (or even just jab reset if you get used to doing it) And after all that...you went for (and misspaced) the f-smash again. At this percentage it's understandable, and even a good idea...but you just gotta work on your spacing man.
5:06 OMG WHY DIDN'T YOU GIMP HIM! You side B'd straight over him (you could've swatted him with untipped fairs to bring him down while you recover, then hit him with the up B itself and edgeguard him afterwards), but even after that why didn't you just bair him? He had no jump, was in lag from his knee, was far off the stage, and was BEHIND you. A simple bair would've pushed him out far enough for you to just beat him back to the stage and edgehog him.
5:12...Why'd you go to the edge? He was recovering high, which is when you stay on the stage and either swat at him if he's really close to the stage, or time an f-smash or spike if he's near the edge of his recovery range. Taking the edge is not the way to do it when he's in such a flexible position, you need to cover his options and FORCE him to recover lower before you do that.
5:15....spacing problems again. You missed the bair<.<
5:27...stop shielding immediately after hitting people. That was a free grab and you missed it
Overall you just really need to work on your spacing, and...work on your reaction time? (is that even possible?) You miss a lot of tech chases because you're just standing in place too long. And also, work on moving faster after your aerials to link combos better (and especially not shielding by accident after L-canceling anymore. I don't think you actually intended to do ALL of those instances I mentioned). Work on your edge guarding and just don't move so freakin' far away when you're trying to setup ledge traps. You move outside of your own effective range a lot, which is kinda just doing Falcon's job for him.
Well, that's my Emblem Lord style critique (for old times sake). Hope it helps you.