Final Image:

1024*768 - Depth of field - 1024 Samples/Pixel - 60,000,000 stored caustic photons.

 

Final Image without Depth of field:

1024*768 - NO Depth of field - 512 Samples/Pixel - 60,000,000 stored caustic photons.

 

Final Image without Depth of field without Caustics:

1024*768 - Depth of field - 1024 Samples/Pixel - 60,000,000 stored caustic photons.

If you want to find out how to produce these nice images checkout the technical details section.