Please provide opinions. I don't have a good photo of the space, and there's actually some construction taking place as we speak. Here's a basic (not to scale) floorplan of what the space will be like. I'm going for open and airy, but I don't want it too monochromatic (also not a box of crayons), so I've selected this color palette:

For closet bumpout and back wall of family room: Old Straw Hat http://www.benjaminmoore.com/en-us/paint-color/oldstrawhat

For other walls in foyer and family room: Cement Gray
http://www.benjaminmoore.com/en-ca/paint-color/cementgray

For guest/play room: Beacon Gray
http://www.benjaminmoore.com/en-ca/paint-color/beacongray

white trim and ceilings

Whatcha think?