Congratulations on your first game jam!
This is very simple but you did manage to get a gameplay loop down. It is a good thing that you kept the scope small enough to be able to finish. Keep working on the programming and understanding the Unity engine (how the input, physics/collision etc systems work) and you can slowly increase your scope!
It is worth allocating a bit of time for polish - add in a few sounds, game over screen etc will help a lot too. Also make sure you play test: the UI for the game over text in the web version doesnt all fit on the screen!
Keep it up eh