Thanks for the much appreciated feedback. That was enlightening, wouldn't have known otherwise.A number of F-16s from 140,143 and 145 Sqn received these markings for Ex Hotshot 2012. These should have been taken quite some time back since they've been removed. Some of the vipers had their canopies painted as well.
The photo was actually taken just last Wednesday, on the 6th of February 2013.