David & Adriana
Craig McCahill's "David & Adriana"
See how the face changes depending on the distance (or scale) at which it is viewed - try the "all sizes" button - based on the hybrid portrait work of Aude Oliva at MIT.
Exhibited at the Curiosity Collective Show, Ipswich, 2nd-6th August 2006
A description of the technique is to be found here.