It is good practice. With some tweaking, and maybe a time limit or a leaderboard, I would be happy to playtest it again. That puts it ahead of 90 percent of game jam entries. And game jam entries are already ahead of 90 percent of people who want to make a game but never finish one, because getting to a playable build requires pushing through a lot of real obstacles.
The 3d environment is charming. Playing around with positioning light is nice. <3