Looks like in camera metering was used. The camera's meter will want to make everything an even 18% gray, so scenes with lots of snow need some overcompensation to be properly exposed. That said, nice DOF.
5 - Good DOF. Like the concept/potential. Criticism; seems a little 'dark' overall, especially at this size. Difficult to discern, but perhaps needs a nudge rotation up on the left, seems a little 'unlevel', but apologies if wrong.