The balcony and the living room are connected together with a sliding door in the middle, but now the balcony floor is higher than the living room. Does feng shui pay attention to who is tall?

From the perspective of geomantic omen, we don't pay attention to balcony floor or living room floor. However, if the balcony is an open balcony, it should be more distressing, and the living room is prone to water after the balcony rains. If that's the case, you should consider it in many ways. If it is a closed balcony, there is no such problem.