Ah, pictures like this just beg for a story to be told.
It doesn't take much to ignite my imagination. I can see this as a story about a runaway.
Maybe a runaway slave in 1860. Or it could be a ten-year-old girl on an adventure in 2015.
Mystery. Intrigue. They are limitless if you turn your imagination loose.
So, what do you see? A white stallion running out of the fog? A German tank in WWII. Maybe, a dragon forced from it's lair by troubling trolls and hungry for a meal.
Look deep. Look inside yourself. Unlock your imagination and let it fly.
Have fun : )