A mean moody monochrome for you this morning. In fact it's a mean and moody morning anyway, very November.
Is the monochrome conversion and the sepia tint an admission that the picture wasn't good enough in it's original colours? Quite probably.
This does bring to light the way things have changed. Years ago you would have to decide in advance that today was a monochrome day, and loaded the camera with black and white film.
Perhaps you had two cameras, one of colour, one for monochrome.
These days we take all pictures in colour and change them in the computer if we wish. If there is any monochrome commitment, then it is the decision to fill your inkjet with a selection of black inks to get that ultimate monochrome print.