Do you have pictures of the couch, flooring & bookcase?

No, not yet. We're just unpacking and setting up.

Very light greenish gray. If you want a rug, get the rug first.

You have the beginnings of a great color scheme. The wood floor reads as an orange tone, which is the complementary color to the green sofa. For walls I'd use warm light neutral colors such as cream. For drapery and rug go with the light-medium warm neutrals. Maybe a caramel color in smaller amounts in the pattern or in pillows and art. Avoid cool colors such as cool grays or blue.