Teensy 3.6 BMP Light Painting with Onboard SD card

Currently using the Teensy 3.6 onboard SD card to create some light painting using 24bit BMP images stored on the sd card. Here is the result:
(code is over not he write-up page)

Light painting with images stored on the Teensy3.6 onboard sd slot using 24 bit BMP files
Light painting with images stored on the Teensy3.6 onboard sd slot using 24 bit BMP files