Ok, I got kind of tired after a while and didn't bother to read absolutely everything (there are a lot of posts here). Yes, Eovia should state that zbrush was used, like they do on some images: Carrara+3dsmax for instance is used on Thomas Roussel's crazy break dancing indian elf thing. So it should say Zbrush+Carrara, I too was amazed by the quality of these images, but at least they show what can be done through the rendering engine of Carrara.