I think it is also important to note that when you say 'heavily entangled', it almost seems to state that it isn't just artwork. Of course the game jam is about showing you can code. It isn't hosted by GameDevTV for no reason. They want to see what you picked up from their courses, I guess...but I might be wrong.
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Well, I've used some models, textures and animations. All code and prefabs / scenes are freshly made by myself.
I've had the habit of taking 3rd party assets and structuring them the same way I structure my own assets, which is what I've done here and what I meant by 'heavily entangled'. It might be a bit of an overstatement.
With my newfound knowledge of the EULA, I will change this habit to have a directory in my project that is to contain all 3rd party assets and have the path to this directory in my .gitignore