I linked to the final render is in the text. Its the link to DeviantART.
As for the Salome image, she is standing in side a cube so the light never stops bouncing around and her skin and hair are set to the glossy material and glossy surfaces, including metal and mirror cause even more light bounce and thus longer render times. Thats the laymans explanation.
Sorry Mattymanx, brain fart on my part. I never clicked the link to the DA page. One of those “Well, Duh!!” kind of things. It would pay me to pay attention wouldn’t it? That scene looks great!
Thanks for the reply and explanation. But for Salome, was there a reason to put her inside a cube? Pardon more noob questions, but what was the purpose of a cube? I never saw it in the scene. And the matter about indefinite rendering with no end still has me puzzled. If you had let the race car render for 9 additional hours, would it have looked significantly better than it did in the DA gallery. What would 9,12, 24, 48 more hours have done for it? Ditto for the girl. Would 60 more hours result in a 2X better render? It looked very finished already.
The purpose for the cube was so I could have the light bounce. In the real world, light has something to bounce off of all time. In a 3D program we can give the illution that the figure is in a room all the while they are really in an open space and you wont get the proper illumination all around the figure cause light escapes off in to nothing.
As for never ending and more samples, through Reality, you can tell Lux to stop when a certain amount of samples per pixel is reached. But to my knowledge, Lux will never stop if you dont tell it to. Its true that you want more samples for you image to make it look better but you will reach a point where you cannot see the difference. This image here - http://mattymanx.deviantart.com/art/Jazlyn-321987986 - if I did not say so in the comments, you would not have guessed that I let it go up to 12,000 sample per pixel. And I can tell you that I saw no real difference between it and the 3000 version. I think I only let it run that high for fun.