One of the most funny puzzles I've played in a long time.
I only won't give it a 5 star review cause I had a real hard time due to my deuteranomalia, that made me struggle to figure the color red from green - in many cases, it looked the same, so I couldn't read correctly the pattern. My suggestion is an option when we could replace some colors in a way that a replaced color is replaced anywhere, therefore not breaking the puzzles.
But, except for that, the little game is superb. Not too easy, not too hard, funny to solve, I really felt good when solving each pumpkin. Awesome work, thanks for posting.