My Kua no. is1 and house is NE1 type with main door facing NE. 1. Is adding a men-made waterfall at northern house corner which is at left hand side of main door auspicious? 2. Thinking to set up a bonzai rock garden at SW side, will a 5'ht wooden fence build adjacent to back door which is at SW of house spoil the feng shui? Does it activate any mountain star in this sector? 3. Does beautifying the existing small pond ( with overflow water drain out to SW side) at Southern house corner with bridge and plants auspiscious?? Thankyou.