I wasn't happy with the fact that the walls in the upper floor of the gallery were blocking the nice view of the sunset, so I lowered the floor by a meter to give a gap underneath:

I had to adjust the clock hands a bit, but they still don't look quite right.

I'll keep at it. Maybe with a little effort, I can come up with a way to scrounge more wallspace for display purposes.

Stairs instead of ramp. Hands pass through the gaps.

Better.