your game has a nice concept, but it's the same after 5 seconds as after 5 minutes, so maybe you could add scaling in difficulty in a future update, if you're planning to make those
thanks to this game, many people have been saving their money for 10 minutes (YES, you heard me right, 10 WHOLE MINUTES), to buy a mona lisa, and now, over 100.000 people are in posession of a mona lisa.