This was just a test render using Blender 3.0.1 + Cycles using NVIDIA Omniverse assets.
Full Project: https://www.artstation.com/artwork/o2...
It took 9:38 hours of rendering with 600 frames and using an RTX 2080ti, an average of 1 minute per frame with 380 samples and using the "Denoiser Comp Adddon" (https://blender-addons.gumroad.com/l/) denoiser_comp_addon) to improve the quality.