Used here is Tangled_Universe's (Martin) how to canyon' file from FrankB's site: NWDA. And, thanks to Frank for his support.
The plants used are the grass by 'Klas'; also his 'KK' tree. The bushes used are from Walli (dry bush pack from NWDA), one bush model from 'lightning' and two leafless bushes from a friend. Those being in the shadows didn't do them much justice.
Two suns are used here; one in the scene and one overhead (45 degrees and no shadows) to provide some light in the canyon.
Bob