Here's a few suggestions:
1. A few of them were combos. Good job. However, many of your "combos" can be avoided with DI, something lvl 9 CPUs lack skill at. To find real solid combos, you need confirmation by using them on real people. CPUs often DI the same way, often to their disadvantage. Either that or they would have no relevance in competitive play. Like most of your meteor smashes against G Dorf are easily countered with a Side B suicide smash. Or Down B -> Up B. CPUs take a lot of training to learn that kind of stuff, and they probably will never learn it.
2. Watch some well established combo videos. They're all over smash boards. Learn from them.
I'm not saying "NO DO VEEDOS NO MOAR", you did some stuff right. For instance...
You didn't use obnoxious and terrible music. (+1)
In the future, if you find a combo on a CPU, try it again a few times, on different characters too. Then find a friend and try to use it on him/her. If you succeed, tell him/her that you think you found a combo and tell him/her to try to avoid it. If it succeeds often, it's probably a combo!
If you make a video from a combo, try introducing the combo by using it in training mode, then show a few clips of you using it in REAL MATCHES (important!). It gives direction to the video. I mean, 10 minutes of Olimar meteor smashing characters is great, but give it purpose!