It does show some improvement.
First of all, practicing on Great Bay is probably not the best idea; you'll never see that stage in a tournament.
Definitely start working on wavedashing out of your shines so you can follow them up with aerials.
Learn to space your approaching dairs/nairs so you land close enough to shine immediately after landing lag.
It looks like you're missing L-cancels on your aerials, so work on that.
Not sure why you keep full-hopping everywhere, but whatever is causing that needs to be fixed. Empty full hops are going to make you have a really bad day in tourney.
You should practice working in laser mixups to your neutral game. If you just immediately go in all the time, it's not going to work out for you. Keep them guessing when you're going to hop in with an aerial. This is actually one of the reasons not to practice on a CPU above lvl 4: they powershield too much. Powershielding CPUs condition you not to laser in the neutral game, which is a bad thing.
Watch this video of Shiz vs PP for some ideas of some shine techniques to practice. Note their uses of waveshining, shine OoS, and aerials followed up with shines.
Especially pay attention to the combo Shiz gets right at the beginning of the match.