feng shui continued, subtle differences between south west and south east,

South west is earth and south east is wood, the binding factor being fire between them. (had to correct previous entry)
in color terms
fire - reds, down to deep purples, oranges and strong yellows are present
earth- beiges, pale yellows, sandy and earthy clors
wood- beiges, greens - yellows

green and brown seem to be reserved for wood, but what sets earth apart from wood?

"follow me"
(in progress ofc)