Printed at 150% scale with some modified parts, I give you "Braq The Wise". It's essentially an Arduino-powered magic 8 ball. When the sensor detects movement Braq responds randomly with either a solid glowing green eyes or flashing red. When sitting idle Braq's eyes glow blue and after no movement for extended period of time will go to sleep which is a faint blue.
I redesigned the eyes to be a socket for an 8mm Neopixel. I glued the LIPO battery to the roof of the mouth and fabricated a custom socket so I can unplug the battery if needed. I turned the articulating jaw into a switch, so to turn Braq on you simply open the mouth.
I drilled a hole in the chest to mount an MC-SR505 Mini PIR sensor I picked up off eBay. Inside the chest lies the Arduino Gemma board. I ran a USB cable down the tail and designed a custom end cap.