Hidden art

In June, I blipped a window in an old deserted house and have been meaning to go back to see what was creating the colour that was visible through one of the panes.  Decided to make my way through the almost waist-high grass today to go behind the house and was very surprised to see this!  Definitely not stained glass.   You'd never see this unless you went around the house. 
Decided to add an extra of this pollen-laden bug bottom!
Have to do some work in the garden, so off I go!