so here ali u can see on the picture what room i mean .....

first picture is the floor in the down

and that is the same room but upper floor...

i hope u understand that this are an examble in 1 room 2 floors.. where u can use the way down and the way up...and on the side i will think it where cool to have some pipelines texture and down in the way some side slime falls or one long pool per side... what do u think?