Tips for shooting the moon?

Hi folks,

I've been trying to get good shots of the moon, I've been able to get good clear shots of the bright side but I'm struggling to get a good earthshine shot to use in a composite. I've been using a D850 with a Sigma 150 - 600, f11 1/125 and iso 100 for the bright side but can't find good settings for the earthshine any tips welcome