Just picking a random point to start at. Starting at 24:00. TL's perspective. Gonna be super nitpicky. :o
You seem to double jump unnecessarily a lot. It's not as important at low percents not to do that, but especially at higher percents, if you do that and you get hit out, you'll die a lot earlier.
Use D-throw to U-smash or F-smash at low to mid percents (I saw F-tilt). Use C-stick for fastest input.
Daze is right. There are a lot of times where you could be grabbing. Try to get a feel for its utility when you play.
When edgeguarding Sheik, GRAB THE LEDGE. It's so amazing. If she has to Up-B, it's free damage for you. Best punish is usually Grab>D-throw>F-smash/N-air back off stage. You like to drop bombs on her recovery. She's not a normal character. You should just use your bombs and throw them towards the stage to turn you around so you can grab the edge. (Dropping bombs from the sky can be good on stage though)
When you do grab the edge to edgeguard her, either ledge hop up or just click forward and stand up from the ledge. Standing up from the ledge usually allows you to stay on the edge while getting up onto the stage with the least amount of lag. After you get on the stage, grab her or if necessary, F-air/D-air her. (25:32, gotta ledge hop F-air that)
Don't chill near her shield with aerials unless you space them or are going past her. Like, space F-airs on her shield or N-air past her shield.
Don't approach her when she's on the edge. Even to drop a bomb. She's got invincibility and can either make the bomb explode hurting you or come up with a N-air. Instead, stay back and don't go off stage. Just wait for her to come up. Throw out boomerangs, drop bombs, toss bombs upwards. You know where your projectiles are better than your opponent.
At 25:35, after you get B-thrown, that is an opportune moment for a grab instead of jabbing.
At 25:40, you D-throw>Up-B. If for some reason you may be feeling like you won't connect with the strong hit of Up-B, just go for a F-air or U-air at that percent as those will kill anyways (though Up-B is always a good option).
I would suggest not using arrows at high percents. Just bombs and boomerangs. They're more combo-able. Actually, just less arrows. They're laggy and don't have much reward.
Totally random thing. Instead of using daze's "dribbling" technique with arrows, use it with a Z-air. Or practice using it with a Z-air. It's got the most bombsauce Okamizeme trajectory ever.
When you hit with boomerang at low percents, just go for a bomb unless you're super close. It's not really too safe to try to follow it up from mid range.
The N-air read at 26:30 was really good.
26:45 D-throw. I'm like 95% sure that F-smash would've been guaranteed. Go for it!
When you have a bomb and you're on the edge, you gotta do the Okami (#narcissist). AGT the bomb forward and momentum yourself upwards. Then you still have your second jump. This is again why I suggest using a tap jump off tag.
27:25. You had a nice D-throw, B-air, U-air combo. But Up-B would've been better since it would've gotten him more off the edge, or perhaps killed.
I feel like you go for a lot of unsafe and telegraphed D-airs. And too many arrows.
DISCLAIMER: Anything I say is subject to being bad advice. Take it with a grain of salt. Etc. etc.