May i ask which remeshing methods u used to get to the point when you add holes? I've spend whole day figuring that out. I've tried double sabin, mixing rind modeling with sabin and i get no clue. Some kind of tip would be much appreciated. Great work.
The time varies quite a lot. Some of my renders take 10 hours plus, and some only take 2 or 3. This render took about 3 hours in total. I spent more time actually setting up the scene and doing small test renders before doing this big one.
I should also mention that I render my images at 8 megapixel resolution.