I know there's allways things to be improved but adding volumetric lights, crowds, bump maps and such thing add a whole lot to rendering time wich I don't have currently. Maybe on the next holiday I'll do a retake of this render with a bigger scene everything textured and modeled properly.
tbh, a few extra toris doesn't add much to the rendering time, also, volumetric lights, = not much rendering time either, the only thing that takes time is HDRI rendering, with GI on.
anyways, I'll be looking forward to your retake :>