Overall, not bad. Good tech skill and mindgames.
I definitely agree with T. Webb. There were times when you would shine and then either do nothing afterwards or just wavedash away. Try following-up more. When your opponent is shielding try dair > shine > wavedash OOS behind his sheild > shine. If the first shine doesnt get him, the second one might. Another option is dair > shine > wavedash forward > jab > upsmash. It works wonders.
Approaching - i noticed that you dash danced a lot, which is good because it makes you less predictable, but then you would approach at terrible times. Wait until your opponent is vulnerable before you approach him. Dash dancing in and out of his range can cause him to wiff, and when he does PUNISH HIM.
Lazarz - Id like to see some more pew pews. The only time you ever used your lasers was out of spawn. You dont always have to go on the offensive. Try SHLing while dash dancing. It can rack up some good damage and make your opponent go on the offensive. Especially ganon because he has no ranged attack (except his fair, cause it takes up half the stage). Lasers also help with your approach. Fire off a couple of rounds and your opponent will either shield or try and get out of the way. Theyre gunna be worried about the lasers. Thats when you approach.
D-tilt - You used it a lot, which i guess is okay.. Wait till your opponent is at a high percentage to use it so you can follow-up with another attack. In the first video, you hit ganon with the d-tilt at 0% (at ~1:00) . It had no knockback at all, and he just hit you back with a jab. Later you hit him with the d-air at 80% (~1:20) and followed up with a fair. You proved my own point.
Recovery - The reason you lost the first match was because you side-Bed onto the stage and got punished for it. Dont do that. Go for the edge, its much safer. Or atleast shorten the side-b ( by pressing b again during foxes movement) for a lil' mindgaming. In the third video, on dreamland, you killed youself because you were trying to sweetspot the edge from an upward angle and missed (~0:58). I dont recommend killing yourself (it hasnt really worked out for me so far either). Later that match, instead of going for the edge you just went straight back onto the stage with your up-b (~2:50). it worked out this time because you hit ganon, but it could be easily punished.
Grabs - I saw a d-throw ONCE. i didnt like it. i dont recommend it. but since you only did it once, it could have been an accident.
Just keep practicing. Youre pretty good already and i can tell you have a lot of potential.