It takes endless fussing to get shadows laid on uneven terrain..... but oh so worth the effort. I replaced most of my palms with 2 prims for 8 palms from T, Cleonae and Tobias Novi; slurl here. The packages includes shimmering (shake) movement in the shadows. By taking out my old palms I gained over 400 prims. ... and then I added shadows to my other landscape.... and some nature sounds in the rocks... and it is almost paradise.