If you look at the position of washbasin and squat toilet in this plan, it is really bad.
Even if the two places are reversed, the washbasin facing the door is not good. Water flows out for money, and guests can see it as soon as they pass through the aisle.
Moreover, it is more unlucky to install a mirror on the washbasin, and it is easy to be nervous to look at the mirror directly from the aisle.
It can only be decorated by avoiding squatting toilets, hand basins, mirrors that can't face the door, and avoiding direct viewing from the corridor.
If it is a fait accompli and the pattern cannot be changed, it is better to put green plants at the door of the bathroom at the end of the corridor (it is best to transfer the owner's waist), or put a screen to cover it (it is difficult to do this when overlooking) and close the bathroom door for a long time.