First of all, have to say that your game is surprisingly decent for being made in two weeks. Despite it being very rough, it's really good!
If you're looking for suggestions, I'm happy to send a few your way:
1. Make a windowed mode if possible.
2. Have a sprint option for the player character.
3. Add in some animations of your character being devoured instead of making the character just teleport into the Witches belly.
4. Possibly a minimap or some form of sensor that lets us see the nearest orb or orbs?
5. Have an options menu to change a bunch of different settings.
6. Maybe an option to change the Witches into a different threat?
That's everything I can think of. Hope it helps!