The first prize in the Nikon Small World competition 2011 goes to Dr. Igor Siwanowicz of the Max Planck Institute of Neurobiology, Martinsried, Germany for his portrait of a Chrysopa sp. (green lacewing) larva (20x)

Portrait of a Chrysopa sp. (green lacewing) larva (20x) by Igor Siwanowicz
But my favourite is this one which “only” got an honourable mention as an image of distinction by Debora Leite of University of São Paulo, São Paulo, Brazil, of a Sugarcane root cross section (20x) which reminds me of a fractal:

Debora Leite University of São Paulo, Sugarcane root cross section (20x)
All the images can be seen here.
