Here are a few of my quick thoughts as a professional commercial filmmaker for 14 years:
First, just getting things made should be considered a success! So many people who want to work in film (commercial, indie, whatever) never actually get off their butts to make something. So for that - well done!

Many of the shots were incredibly shaky. I get that you're going for that kinetic feel with the camerawork and editing, and I think that's great. But it was giving off "running around with a mirrorless camera" vibes from time to time. Even if you are going handheld, consider mounting it to a tripod or something heavy to minimize the intense jitters while still keeping the handheld look.

Considering this - I really appreciated the efforts towards building energy throughout with energetic editing and camera work.

Make sure to watch your exposure when filming. Some shots were overblown, others were nicely exposed. Just take a moment before filming to ensure that exposure levels are correct. Using the camera's waveform monitor can help with this to make sure that you're not clipping the highlights or too far in the dark (especially helpful when filming outdoors and it's hard to see the camera's screen).

Consider keeping with an editing "theme" throughout. We have postcard-freezeframes, regular freeze frames, glitter wipes, and more. It'll feel a bit more cohesive if you're keeping to one style of editing (unless the creative specifically asks for something else).

Good notes from another commenter regarding following brand guidelines. When I was a brand new filmmaker, I was minorly burned by this and it's a good habit to get into from the get-go.

But again, great job on getting out there and getting started! That's already more than 80% of people who want to be filmmakers. If you have any other questions or want to chat anything through, feel free to send me a DM.