Is there anything to say about the west wing and the master bedroom?

As long as it's your yard, of course it's fine! Don't be too big, it's estimated that the approval procedures will be very troublesome! Do a good job of waterproofing, otherwise the humidity will affect the main house!

This friend is currently undergoing toilet renovation in the countryside, which is a new fashion called for by the government to have one toilet per household, which is beneficial to the country and the country. >>>More

The size of the bathroom is okay, the width is meters, then you install a bathtub about a meter or so horizontally, so that it is about the same. If the length is meters, it can be made into a dry and wet partition pattern, with a bathtub (or shower room) and toilet inside, and a washbasin outside. But the length of your room is a bit big, see if you can separate a cloakroom, or get a small study?

Which door is bigger in the master bedroom and the second bedroom does not affect Feng Shui.

YES, THE NORMAL TOILET IS ONLY 45CM WIDE.