As an "experimental project" this game is alright. Try next time for color, and some sort of objective of what to do. And instead of just open terrain, try to have levels. As a first game, though, I think it is OK.
The "Doodle" Series is excellent. It combines addiction with the fun of creation. The only thing that I would add is a save feature. I hope this gets badges, and this was not stolen. The creator of this game has more than one profile. 4/5 for no save feature, but great game overall.
i'm going to fap in front of a mirror now thanks