The balcony cannot face the door. This is a taboo in Feng Shui, but nowadays there are few buildings with such Feng Shui requirements. If the door of your home is opposite to the balcony, you can draw the curtains as a partition. You can also put a porch as a partition between the door and the balcony. You can also add fish tanks, potted plants, and creeping plants at the entrance of the door.