u/Helpful-Fuel-7568

Can someone confirm if I did this right?

Yellow- Base / Floor

Green - Walls

Red- Tops

Eliminating 9s

I dont have any eliminations do I? To my understanding I can only eliminate 9s in column 2 Box 1 and column 1 box 7 (counting boxes left to right)

A user u/A110_renault pointed out on my last post a new way to find and solve skyscrapers, such that the floor / base can be weak and the walls need to be strong. Unfortunately that confused me even more.

Not sure where to go from here and dont want to use a hint