Overall: I made it to the "You win" screen. Good game! I think there should be a counter somewhere to indicate what level you're on. It doesn't need to say how many levels there are, but it would be nice to be able to say "wow, I thought level x was tough!" you know? My biggest complaint is that holding down the spacebar just made the object get picked up and released over and over again. it made simple actions like moving a tile a huge ordeal because I would accidentally hold the button for too long and it drop it after picking it up, or pick it up after trying to drop it.
Fun: I enjoyed the puzzles! I will say, the pickup/drop issue mentioned above really became frustrating, but I'll look past it for my judgement of this category. The puzzles were enjoying and satisfying to solve. (especially the one with the three locked green blocks at the top. Again, would really like level numbers to explain which ones I liked).
Innovation: It's definitely something I haven't seen done before! Good stuff.
Theme: This is a pretty good take on the theme. It's certainly centered around getting combos of boxes.
Graphics: It's very easy to read, and I appreciate each arrow having a different color.
Mood: Not applicable.
Audio: It could use some background music. The sounds for all the actions make sense, and work well.
Humor: Not applicable
Final thoughts: I really enjoyed the puzzles! Some of them took a while to figure out, and it's honestly a really cool mechanic. Nice work!