1) - Bump the topic https://www.steamgifts.com/discussion/cypa5/3-jigsaw-puzzles-for-a-jigsaw-game-level-2-3-4-5-inside
2) If you win, it would be nice if you find 5 minutes to write your opinion about the game at the steamstore review page

Now go and solve those puzzles so you get more chances to get this great game :)