Oooh I love this idea! It's like a fill-in the blanks improvise party drawing game! I could easily print this out and just have it lying around!
One idea you could also do to modify this game is to just cut out all the pictures, mix them up, and put them in a hat! Then you pull out two randomly, and then have to draw/explain what happened!
There's a lot of possibilities this game-concept can be taken to!
Great job! I can definitely print this out for a quick party game some time! I also love the little cartoon art style that you got going!