Well this is a project I have started to improve my skills in some of the more unknown functions in blender. Such as displacement…
C&C Welcomed! 
If You turn down discplacement a bit (and pleaaase, change the background color, even for test renders) it’s gonna look wickedly awesome. Any details about how You did it?
I started by subdividing the plane 6-8 times. I then applied a brick texture with the specularity of about 0.8. The displacement is at about 14 and the bump is pressed twice and at about 6.
That’s pretty much it. I never used displacement before and it’s a really great tool!