Your colors and Vivek's are so different – I guess you're using different profiles?
Kirk
I sometimes use a custom color profile by using Color Checker Passport. I've found, though, that the RX1rII often does better using Adobe's standard profile.
The three Christmas shots required very little post processing. I added a bit of dynamic contrast and levels adjustment for full dynamic range. But really, the images often come straight from the camera in acceptable shape. The OOC jpegs are usually spot on as well.
Looking at some of the images this camera can create, on a Retina display, really show what this camera/lens can do. The outdoor image of Union Square was shot on an overcast day from inside Macys (through a glass window). Yet it shows a remarkable sense of light and color saturation. I'll have to go back that same spot on a bright, sunny day to see how it compares.