Nice idea :) Though size wise, it does seem too big. Unless you will go quite a bit faster or have speed boosts or something. I look forward to playing the next version!

You've got a decent enough idea here, flying around is fun and you have an interesting environment with a lot of landmarks

Most of my issues are technical -- for one thing, opening your game made a firewall prompt appear, when your game doesn't seem to have online content, which is majorly sketchy, and it also opened up SteamVR, which was unpleasant as well (it's possible that your game supports VR, but if it does, you want to have a button in the menu to enable VR mode, not have it enable itself by default)

Also, as a heads up, when you upload a game to itch.io, you typically want to upload the .zip file directly to itch, so that people don't have to go to any external websites. Additionally, if you can, it's best to make a build of your game that's playable in-browser, because that's a lot more convenient so you'll get a lot more feedback from other developers (and here's how to upload it to itch)

In terms of the gameplay itself, I think that the core gameplay of flying around collecting those big orbs works well, but I wish that the orbs formed a clearer path and I wish that the plane moved faster overall (you've made a really big environment, but it feels like I'm moving at a snails pace!)

Overall, I definitely hope you continue working on this -- with the right music, this could be a really nice calm flying game