I was just trying to create some paint using light and shadows and i got this ..i liked it so much ..because when i tried next time i didn't get the same result :D

Actually i was just playing with light and darkness in lonely dark night, I thought to pan the camera vertically instead of the horizontal so that was expecting some kind of effect ..but luckily i got this nice pic..
Find below link for image with normal settings, difference is obvious.
http://www.mazharuddin.com/content/test