Hello!!! I have completed levels 1 through 4. All of them were quite difficult and the achievement was amazing. I'm especially glad that the masterpiece inART was waiting for me at the end of level 1.
And a bug report. In v1.2.1, if you hit the purple ball on level 3, there is a significant probability that you will be thrown off screen and Takodachi will continue to fall through the abyss and not be able to return.
Also, this may have been fixed by now, but in v1.2, when I tried to get the giant cookie at the goal on levels 1 and 3, I couldn't get it because it hit something like a wall.