INTERIOR AMMM by architecture, via Behance - Narrow vanity alongside the tub. This is what we have only our sink is centered (way too close to the toilet). I was having trouble finding images of off center sinks in this configuration.
Small toilet, which is only a pair of square meters, should be very easy and usable. The chief task - to plan the interior toilet nice and easy. In a small closet should also be arranged convenient system for storing toilet paper, detergent.