Hello,
I streamed your game last weekend. Overall, it's a really cute game with well conceived puzzles.
Though I enjoy puzzle games, I often get stumped by puzzle games rather quickly. (My track record with my stream is often within the first couple levels I am already getting stumped) however, with Stick to the Plan I somehow managed to quickly grasp the core mechanics and solve the puzzles rather quickly. I think there were lots of "Ah-ha!" moments. I will admit that I think it was puzzle 14 that I got absolutely stumped on.
I will say that there are some minor flaws with the game. It would be nice to have rebindable keys. I found controlling the dog somewhat awkward. It's not the most important thing given the slow-pace nature of the game, but it's always nice to have comfortable controls regardless of the genre.
Additionally, it's possible to break collision with the stick. It's hard to say exactly how, but a few times I was able to click the stick past an obstacle when turning. I believe this is created when the distance is shortest between the stick and the obstacle when the dog turns with the stick in his mouth. By mashing the turn key, eventually the stick will clip through the obstacle.
If you'd like to watch my experience with your game, I've linked the archive below. You can click the timestamps to jump to when I start playing your game.