I found the concept cool, but in reallity I didn't fully understand how the game played. I didn't understand hot to make Timmy make better drawings. I did understand that using zoom made more precisa lines, but even with that, the lines ended up bad. The level selection menu could be more clear too.
But like I said, the concept is pretty cool and the fact that everything is a drawing instead of sprites has a certain charm, so good job.