Good looking individual, and good colours in the dull conditions (BTW, I love overcast days for photography). The details seem to be very good too. A tough one to expose and you've got some clipping on both ends of the histogram. You should be able to recover those during raw conversion. At time of capture some fill flash would have helped and would have been nice for the back of the head hich seems a bit dark.
Once in a while a Eurasion Wigeon like yours shows up here and gets many birders in a frenzie
