Thanks for sharing these pictures.
I have ordered an M50 in mineral white, but now I'm not so sure about my color choice anymore.
From these pictures the white color looks "too bright" to me, and much closer to Alpine white than I expected.
I loved the "ice cold, greyish" look from the indoor-pictures first in this thread. But I guess the lighting fooled me more than I thought.
Here in Greece where the summers are hot and the sun bright, White is not only good looking but a wise choice.
I am not sure why I am still going for the black (or red) but white brings up the design of the M package. Really nice choice.