Thanks!
Some info:
Maxwell Render Beta 1.2 (rendered when this version was the newest)
Image resolution : 2400 x 1500 px.
Scene polygons : 1.055.000 polys. (mainly 'cause the rooftops and trees)
Render time : 15 h. on a Dual Xeon 3.0 Ghz with HT, 2 Gb ram.
Sampling level : about 17 (don't remember exactly)
fStop : 8. Shutter speed : 125. Film ISO : 100.
Maximus3D:
Thanks. Yes, it would look nice with clouds, but I like clear skies. About the aa problem, is caused by the sharp filter and the image size.
n1tram:
Thanks. The sidewalk sucks, I know

. I think the same about the clouds. These people are not RPC, these photos are from ImageCELs. These photos were taken outside with sunlight, so this is why they look better. The trick is to find the right one/s for the scene.
Thomas:
Thanks. Maxwell sky rocks.
hotrod, x_site, Hervé: thank you, guys
Well, this is a larger image WITHOUT post. There is a blur problem, well known in beta version 1.2 :
But the image looks better after post, in my opinion :
And a couple of wires :
