A few nice photo collage images I found:
Parc du MONT DES ARTS BRUXELLES
Image by GENTIKMONOEIL BONPIEDBONOEIL
bonpiedbonoeil.wordpress.com/2009/06/15/collage-mont-des-...
Vogue September 2012_0007
Image by ms. neaux neaux
collage - cut & paste
Vogue September 2012_0005
Image by ms. neaux neaux
collage - cut & paste