Ok... I am NOT good at this game. After multiple tries my best score was 9. BUT the game was fun enough to make my try and try again.
The graphics instantly stand out- cool that you've made the level change colors! Flat shading on everything makes the game look fun, and the fact the objects retain their colors (bouncy pyramids are always orange, ball always red) means that the level is instantly readable.
Audio is ok. The music fits the game, but never distracts.
Use of the theme is really great. In this jam the question are "is the space limited" and "does it affect the gameplay in interesting way". I think for your game it's "yes" and "yes", but due to how the player interacts with the game, with only small, precise movements, the limitation really hits you. It makes you feel the limited space, and really think about it. So yeah, great job on the theme :)