Hi Antonio!
You can check the requirements for the assignment here:
https://www.saxion.edu/programmes/bachelor/creative-media-and-game-technologies/requirements
The programming part of it is quite simple. As you have more skills in Photoshop and After Effects you can explore those skills by creating an interesting caracter, for example.
The examination board doesn't expect to have a complex and finished product, but to evaluate what you're capable of delivering so far, and your potential once you improve your skills during the course.
Good luck!