Cool little concept, it has a lot of potential! :)
Unfortunately this state of the game is a bit too easy since there’s a lot of time to get things perfect before the timer ends, always getting the highest score: it would be so cool if there was a series of levels getting harder and harder, with the canvas ever expanding and the timer getting more and more tight. You might also add a button to confirm the painting and passing immediately to the next level: right now having to wait for the timer to end feels like a waste of time, especially with the easiest patterns.
Another thing I will say is that having to listen to the (hilarious) Ai presentation every time you restart the game can quickly get very old, maybe you can disable it from the second time on.
Again, the concept is really good and the game has a lot of potential to be incredibly fun, so keep up the work! ^-^