Hi, you could have put the instructions from your “Basics” screen directly before launching the first level when clicking on Play, as there’s no way to understand what the goal is without them. Plus, it might be nice to use a bin image or something for deleting objects instead of the Godot logo, so it visually represents what it actually does.
Anyway, keep doing game and game jams if you enjoyed it! ;)
And by the way, game jams are for everyone, no matter their experience level! I think most people understand that and will naturally try to give constructive feedback, so I don’t think you needed to mention it in your game. Keep making stuff and having fun with it!