I visited Cetus at about the same time I had visited Locus. It felt like Cetus was where the creator of Locus was practising his craft. Cetus is now gone, I am not sure if it was planned all along... This picture below shows fairly clearly what the owner had explained to me, that he was using a picture (in this case that of a chest of drawers) and manipulating the image and using that as a texture to build.
It was, I guess, the owner's sandbox, and is now gone.