In order to contain everything you need even in a small bathroom and at the same time make the room not cluttered, you need to try. But still this combination is quite feasible in practice. To illuminate a miniature bath, it will be enough moderate illumination and backlight by the mirror. The colors are better to use light and transparent, and the surface is matte, then the room will seem more. Do not forget to buy new tables and chairs after repairing the bathroom.
But changing the shape of plumbing is more difficult. The location of the plumbing is determined by the location of sewer pipes and risers. The riser is very difficult to hide and it does not have attractiveness. But it can be hidden in the partition, because modern toilet models are not limited to fastening to the floor, and to hide the riser along with the tank and pipes in the wall is quite realistic. So, a low partition on which the washbasin and the toilet are located on both sides will reduce the loss of area by several times.
It is also better to hide the pipes behind the partitions between the sink and the shower or bathroom. Another way to hide the pipeline can be low basins, which are located near the walls and decorated with wood. Functional objects are best placed at the corners of the room, and they can be placed above the other. And do not forget about the mirrors, because they have long been used to increase space. You can hide the cabinet behind it by increasing the storage area of little things.