Update 23.03.2025: Fixed V6 (OLT) is out. Apparently something went wrong in the training process, resulting in V6's smoother textures. Some people weren't fond of it, so I've tried my best to fix it.
With V6 version, less is more. Don't use unreasonably long prompts, try not to use negative prompts at all, use low CFG ~3-4.5.