First off I see that you often contribute and help people a lot on these forums so I'll give your video some extra attention.
I'm not really going to analyze your "improvement" per say but instead give an analysis of the video posted. You definately improved, however, I believe there is still much more improvement you can make to your current game.
General Advice
Starting Armor Pieces - You def can get some better use out of your armor pieces in the beginning of the match. I would recommend rereading Adapts post on armor piece shenanigans. Granted this match is only one example of your current armor piece strategy, but you could def benefit from using techniques such as glide tossing to tilts, glide tossing to short hopped forward-b, glide toss throw down to create a "wall" effect with the bouncing piece. Up throwing an armor piece on the edge of the stage also provides a similar "wall" effect that helps against a majority of recovering characters.
Your Approach - I think you need to reevalute your approach in general. In this match specifically you were punished a few times on running in and attempting a grab. A very risky approach due to the lag on the move missing. Start using more SH Forward B, Retreating SH Forward B, Retreating SHFF Nair (Mind Games), Stun Gun -> Dash Attack ->( Dtilt/Utilt) -> (Uair/Up a/etc), stun gun -> grab -> down throw -> (etc), and stun gun -> F-throw -> F-throw @ low percentages. Fixing your approach will astronomically improve your game.
New Video Specific
0:12 - Glide Toss Forward throw would be more effective here. Could then regrab piece to "wall" edge guard and in general would gain more control of the match.
0:25 - Shield (hehe
)
1:00 - Ouch Ouch Ouch.. Missed a perfect opportunity. I'm guessing you were caught off guard by down-a landing and hurriedly tried to do something. Against a character with such projectile spamability as link you really need to capitilize on those down-a's. There are many better things you could have done all which I'm sure you know already
.
1:22 - Don't know why you were spamming down-a there. Side-B would def be more effective or perhaps Stun Gun for mind games.
1:30 - May want to stall the ledge instead of standing close to the edge. He punished you pretty quickly coming off his ridiculous death. Specifically a death like that your gonna wanna stay a lil safer. Especially when you know he will be "running and gunning" because he is naturally ticked off by what just happened.
1:50 - Yay! Gotta always love that!
2:15 - So fun when that works too eh?
I hope I was able to help out a little bit. If you have any questions on what I posted I'd be more then happy to help.