Hi Victor, thanks for the comments.
The files were all dng, processed in LR5. I usually tweak the exposure a little, recover highlights if necessary, add a little contrast, a little clarity and vibrance and a mild S-contrast curve. The top pic is slightly cropped, as I didn't notice an ugly intrusion on the far left. That's about all I ever do. These were processed on an uncalibrated MacBook Pro, and uploaded to Flickr. I think they have gained contrast in the process, and certainly look more "vivid".
Occasionally, when I'm looking for something more, I'll take a pic which has a 'dominant' area or spot of colour, desaturate all the other colours and saturate the 'dominant' one, leaving a greyscale image with a single area of colour.
I'm not at all sure that I could tell or define a Leica look, not could I tell the difference between CMOS and CCD. I have an M240 mostly for the live view and the visoflex, not because of the type of sensor.
As far as the visual rhythm is concerned, I find a Leica is both the simplest and the most difficult or challenging camera to use. Simple, because it gives you the basics, and is mostly manual; most challenging because I have to think about composition, move around etc. I'm a "slow" not a "fast" photographer. And a Monochrom is the most challenging camera of all.