Sliding rock light painting.
neutral density filter + Maglight + digital red filter in post-process.
if you don't how look a sliding rock without the light paint special effect check [link] and [link]

Before my trip to the Death valley I said to myself that if i had to come back with just one shot, it had to be a light painting of a sliding rock.
This is THE shot I had in mind and wanted to do, I'm really glad I did
I thought a lot of this shot before to do it cause I knew that I would not have much time to do it. It had to be done at dusk to allow a long exposure, but before the night to still have details in the scene. Fortunately, the full moon helped me to bring details in the scene.

Hope you'll like it