Ok, here goes again, the picture that shows the badly smeared leaves.
The same picture, almost, with my Nikon D40 and 35mm f1.8 prime lens. The colors are not great and my Nikon has a tendency to overexpose and I didn't correct for it, not to mention that the sky is always grey this time of the year in Paris so pictures are often flat unless you compensate for it.
Again, this was just a test so I didn't try to take a great arty picture or adjust the exposure etc., it was just to see the effect of the leaves.
By the way, the Pentax Q image was taken using natural color setting, but I cranked up the saturation. I have since discovered that the extra saturation contributed to the smearing effect, especially when you look at the pine needles.
I am amazed by the detail and sharpness that some people are getting here, that's why I am still hanging onto my Q, despite me not getting great results at the moment.
Below are three more test shots, the one with the tractor, or whatever you call that thing, is disappointing as it was taken at low iso but it looks grainy and not sharp at all. Light wasn't great, so maybe it's that, but anyway, it's just for info.