Looks like a pretty combination of greys, and that you have some natural light in the room to soften the look. Good luck!!

Since this is the master bath what is the decor in the bedroom IMO they need to coordinate and grays in bathrooms need a ton of lighting to keep colors true use LED 4000K or your make up might not look so good in daylight with poor lighting. I would probably do Fog Mist for the vanity on my moniyor those 2 grays do not work together . I find it is best to stay on the same color chip for mixing shades of gray .IMO you are trying to mix warm and cool grays together and I don't think that ever works.

4000K in a bathroom!?!? Oh my -- yowza that's harsh light, I look old enough already... I'd definitely stick with 3000K in the bathroom and make sure you get a high CRI bulbs.