I'll try to help you out. Problem is your falco is better than mine, so there's only so much I can help you with.
A few things I noticed:
Your recovery got punished a little disproportionately (in other words, Light punished your recovery more than most other aspects of your game). You tended to recover with a low phantasm or upb, and you often either missed the sweetspot or intentionally went at light. He punished this a lot. But he didn't punish you so much when you went for one the the raised platforms, and there were lots of times you could have done either. Try to take note in a match if your recovery is getting *****, and change tactics (high recovery, more consistent sweetspotting).
Also, there were several times, especially in the third video, where you opened up with a fsmash while light was just standing there. This almost always got sheildgrabbed. And there were a few times where a ftilt would've worked well instead with less risk. On the flip side of that, you didn't seem to lead into your fsmashes with jab very much. 5:32 in the second video is a perfect example of where you could've done that and ended the stock right there, but you ftilted (and missed) instead
finally, your approaches were well executed across the board, but in the second video you seemed especially patient in your approach. I think it might have made a difference to the outcome of the match, as you rarely got within striking range of peach without a clear advantage. Keep this up.