This one is the best image ever captured by me. This is a  darkfield optical microscope image of self-assembled Silver nanoparticles aggregates. These are true colors which are a combination of scattering by various size-particles and due to the Rhodamine6G. 

This a a microscopic image formed by silver nanoparticles (essentially the aggregates of particles) observed by high magnification optical darkfield microscpe.  

This is a beautiful  image of Silver nanoparticles aggregates captured by high magnification optical microscope. I captured this image during my darkfield optical research on silver nanoparticles. 

This is another beautiful image of Ag nanoparticle aggregates formed kind of leafs of plants.