Hi there. This stuff says by itself:
3d model from this site. Adapted to LuxCoreRender.
1st render ~ 5200 samles, PathGPU, ~1 hour 45 sec (GTX 1060 6Gb);
2st render ~ 1900 samles, PathGPU, ~25 mins (GTX 1060 6Gb);
Denoising: High quality FastStoneImageViewer’s - Noise Reduction tool.
Regards.