Layers Task

To obtain this image of layering photographs onto one another I opened the brick wall photograph in Photoshop CS4.  I then opened the photograph with the flowers on.  I dragged the brick wall image onto the flower image.   The brick wall was slightly smaller than the flower image so I ticked Show Transform Controls and then dragged it to the same size of the image underneath.   I then used the Opacity button to blend the two together until I had the desired blended effect which looks to me as if the flowers have been painted onto the wall.