Invisible Drawing - Smoky tear gas

Hi there! Here's my entry for the contest #invisibledrawing created by @yoganarchista.

Before I turn off the lights, I was ready with my materials. I use drawing paper, pastel (green, yellow ,red,blue and orange) and baby oil. When I was in a dark room, I started to draw something like circle an so on using pastel then i put some oil in my hands.. I started to move my hands like mixing food on the plate. But when I opened the light, I saw this! In my interpretation, it was like a green smoky tear gas in some fantastic movies.

Thanks for this nice competition @yoganarchicta.

To join this contest, please click here for more information.