I don't know much about leica, but as far as the processing on this photo goes I would suggest it's over-sharpened. You can see light halos along the continuous lines in the shot...the edge of the fruit and the blade of the knife. The sharpening also highlights the noise, but this may be part of your 'look' so it's not necessarily a fault, but something to keep in mind.
Micro contrast is really picked up at sub-pixel sharpening levels...0.1-0.2 radius unsharp mask applied at higher percentages. It can work for web display, but messes things up for printing because of the bayer-interpolation of the CMOS and CCD sensors.
For further reading on sharpening, check out
this article. Much of it talks about printing, but it makes some good points.
Cheers,
Damian