Thanks so much everyone!
It is made in C4D and was planned to render for the whole weekend,
but it looked ok after about SL 12-13 something, then it had been on
for maybe 10-15 hours and for every update of the SL value it took
longer and longer and I didn't see any great difference...
so I stopped it, the original size is 3072x2304 and is the second
one that is linked, the first one is some post in PS......
The materials on the ground is if I remember correctly a aluminum material
with bitmaps from some old commercial texture collection, can't remember
witch, so, it may be hard to share...... But a great site with great source
for textures etc is:
http://www.imageafter.com