I did what you say "scale 100% and Fullscreen". But the resolution was not okay. So I will judge according to how it looks in the video that you posted.
The art is impressive. The concept is okay I would say (is not that original). It's like a draw and guess game. But very limited to the cards.
The music is okay for the game.
The addition of a 3d world where the second player is walking I think it wasn't necessary to include. Just doesn't aport anything to the gameplay more than getting lost.
But for 2 days this is a very good game. It would be a finished product in some days.