thanks to all, here are some raw images, about the mac pro, it works like a charm, few energy consumption, not too expensive and give us the flexibility to have mac and windows, about the camera correction we thought so but the client likes it nor natural he says, some other images have it, ill post them later.
The 3d models are most of them evermotio but we have to tweak them a lot to achive more natural look, the originals got too much saturated or bumped
The render times are most of them 6 to 8 hours depend of the view, more closer view more render time, the park was one ot the fastest as incredible as its sounds but is the one that have to be rendered on one machine with 64 gigas of ram, the 16 gigas machines cnat handle that, took about 5 hours just to parsing the scene.
Have to say that more of the forest objects dont look like we wanted to because some refraction problems with forest and corona so we have to eliminate that effect on most of them.