Entering Game Jam 2023

I have decided to enter the upcoming event called Game Jam hosted by University of Cumbria. This will be my first time entering Game Jam and I heard you are allowed to enter one of three categories. I am curious about the Concept Art category and ended up registering for it. I personally feel like this would be a great opportunity to test my skills, go out of my comfort zone and see if I can produce something within the time limit - 3 days to work on said project. I am a bit nervous as I have never entered a Game Jam before and unsure what the theme will be. However, I am excited to see what the theme will be and hopefully I'll be able to create a good concept art. I do take time with drawing and I want to improve on producing work quicker!