One of the really awful things about collage (at least for me, the neatnik) is the stuff you have to use to stick the pieces together or onto the mount. My pal Jessie and I went to Staples and investigated all the possibilities for adhesion they had. I bought a bunch and tried them all, but rejected most for being too messy (got all over me and all over my stuff) or too smelly (rubber cement) or too expensive (it required $7 worth of permanent glue tape to affix just a few pieces, though it adhered really well). I ended up sticking with good old glue stick. We will see if it really can permanently hold the big heavy pieces on.
Can you see the old painting in there? (Hint -- look at the right side of the old painting and then at the top of the collage.)