Little Greene mushroom and rolling fog??????

[aecorner12]

Just purchased a new house and going to re decorate the whole house except bathrooms!
After purchasing 15 test pots and some sleepless nights, I have decided the followings:
Living room: French grey
tv/play room: French grey mid
Study/music room: China clay deep
boy 1: greystone
boy 2 :bone china blue
kitchen: white to match my new seal grey hardwood cupboard

And then I'm kind of stuck........ I can't decide which beige to use for my hall way and landing!
I was thinking of a beige grey for my hallway. I first look at rolling fog, and it seems slightly dark for me. Then the rolling fog mid is too light!
I tried mushroom which I think is quite nice but was thinking will it look nice in a larger area? The hallway is quite big 25m2 and double staircase to the landing.......
Please! Someone has used either colour give some advices please!

Haven't used either of those colours but have used dash of soot in our hallway and it's lovely. Have used other colours : slaked lime, slaked lime mid, and pale lupin. All have been excellent - colours change with the light, they are beautiful to work with (we have done it all DIY) and look far superior to others we've used eg. Dulux and valspar.