Things I liked:
-visuals and base foundation are solid
Things to improve:
-going up makes my character look to the right which feels unnatural and like wise, going down makes my character look to the left
Overall:
You have a foundation that you can build on and you were willing to participate in a game jam and get to a point where you could share your product. I hope you learned a lot for your next game jam! Keep doing it and you will surely grow!