I gave a solid 5/5 for both your use of the theme and innovation. I appreciate original games in jams, and yours is definitely one! Really smart incorporation of the theme and The voxel style perfectly complements your gameplay.
However, I have two small critiques. First, I noticed that I couldn't turn to plant a tree unless I moved toward that direction. This makes a few places impossible to plant on, and I assume it wasn't an intended mechanic. Since the game's purpose is to figure out perfect places to plant, limiting accessibility to certain squares takes away from the overall experience.
Secondly, I believe it would have been more enjoyable and interesting if your concept was presented through animations or visual hints rather than relying solely on text. It could enhance the overall engagement and make the gameplay more immersive.
Great job overall, and these are just minor points for consideration. Keep up the good work! And best of luck for the jam