A few typical Bayer issues - loss of color and false color on small edges.
Original image from DPReview M9 samples gallery, sections reproduced here for commentary only and I am not the author.
Original image link:
http://a.img-dpreview.com/gallery/leicam9_preview/originals/l1070847_aw.jpg
Moved to:
http://www.dpreview.com/galleries/reviewsamples/albums/leica-m9-preview-gallery/slideshow