watched the first set vs. snake, you have a fantastic neutral game, def. props to your victory there.
watched both sets vs dabuz. There is a great rosalina and luma around here, and I also have trouble against that character, like trying to get inside a fortress at times. I noticed you never tried to up+b out of rosalina juggling you while you were on top, I've never faced one with customs but that might be an option. BTW, a good combo with kong cyclone is cargo upthrow to up+B. People always expect cargo upthrow to uair, so if you can surprise them with one of these you'll guarantee hit them unless they jump UP, which only happens if they know its coming. Next time you have a rosalina at 70% or so give it a try and I think it'll kill her up there...I'll have to try this in practice to see myself, I've only done it in matches a few times vs my brother.
BTW, the game is still young. Try to learn and master the cargo throws against the stage when they are at the right %, on some stages you can cargo upair into the stage and others you can do a quick turnaround as you're beginning to fall off the stage and do a cargo downthrow stagespike. Of course you can also jump off them in certain situations, so just look for those. If you ever choose to do cargo backthrow or forward throw against certain stages you can only come back if you can manage to jump on them or have chopper kong.