I really like the concept for this game, and the controls were very intuitive!
Here is some feedback for improvements:
The main issue is the submit button didn't seem to work for me- I'm not sure if it's because there is not screen for loss or not, or if it is a bug, but I tried letting it time out and still didn't get a loss screen so I think that may be it.
I really liked that the goal is to try and figure out what the doodles were saying, but maybe some more direction for the player- maybe a hint button, or an end screen that shows the solution if the player was unable to get the correct answer.
This game felt very creative and unique to me overall, great job!