EXP1：the second model with 2 sets of stairs

this is my 2 sections from my sketchbook, the 2 words are"depend(above)" and "flow(below)"
when I made model by sketchup, I did some small changes from the original images.
This is the 2 sets of stairs I designed for the studios. the stairs lefthand goes from above-ground studio to the exhibition space.It is a set of heavy stairs which i would like to use cement as material. People from different directions can use these stairs in different way.

the stairs righthand goes from below-ground studio to exhibition space, it's cantilevered stairs.

This is a Sketchup image include both of the stairs:

These images below show the 2 sets of stairs from different perspectives: