to me it looks like you shot in low light, not on tripod, and if you left it in auto, it picked a very low Fstop. shallow dof, so just a small portion will be in focus, and the rest soft. I have now shot around 5K shots with my D800, and it did take a bit to improve on the quality over my D700, but paying attention to light, using tripod where needed, etc, the sharpness of my D800 exceeds significantly any of my other Digital SLRs in all conditions, but just a bit more harder to use. so,, tripod,, and
MANAUL mode, best with this camera to take charge of your world.