Congrats on your start! Now, keep on going! But, while this is going to be an honest review, don't let it get you down, if anything, allow it to get you up!
What I liked:
- It was quick and easy to understand what the goal was
- Had a UI with goals
What I didn't like:
- I was trying to use WSAD for a long time to move, please allow that next time (in addition to arrow keys)
- No audio
- It was too simple
- The theme connection was super weak
- Art was pretty weak, would have liked to have seen some animations, or top-down enemies/snowmen, versus side view/flying ones, since controlled character is top-down
Overall, for an 8-hour-thrown-together-at-the-last-minute-and-your-first-project submission, it was fine.
Now, learn from this, keep doing game jams every month, improve everything nice and slowly. Don't try to do an MMO in Month 3. Good luck!