Is This About As Good As It Gets (P&s)

Camera is a Nikon Coolpix S9100. I find it over-exposes so I have it permanently set to -0.7. Custom color balance is set using an 18% gray card.

Here is the setup The milk crate plus the wooden blocks allow me to position the slabs to pretty much fill the frame.

Here are a couple of sample images:



And a 500x500 px section (although had to drop the quality a bit):



The lights are the basic 120W LED replacement floods (BR40 or BR38 IIRC)

Is this about the limits with a P&S