Hybrid Rocket Engine

I have recently been putting together a semi-autonomous hybrid rocket engine, this is a prototype edition, complete with plexi-glass mounting plates. It is run by an Arduino Mega 2560. It has three sensors, an accelerometer, a gyro, and a vibration sensor, all of which are protected and covered (see pictures). It burns a propane flame, mixed with a pvc solid fuel, and pure oxygen gas that is produced with a chemical reaction on the engine itself (see three silver chambers). Please comment!