… what? They could have more art or variation on the exterior, but the glass lets in maximum light to occupants specifically so the building doesn’t feel confined and dark. You can typically see inside at ground level. The upper mirroring is to improve energy efficiency so it doesn’t act like a greenhouse.

My first reading was greenhouses and I was thinking thise tend to have a ton of fancy details when build for the wealthy.

Then I realized you meant the giant mirror towers.