Nursery Paint Treatment

DH and I are getting ready to put our nursery together. We have talked about it for a long time now and have mostly come to a decision, except for the paint treatment.

We both agree that we don't want to do a flat colour around the room and even have considered a chair rail.

We don't know the gender of our baby, so we thought of going with a light green. DH wants something sage-y, I want something more pastel-like.

Here is the bedding that we've chosen: Bunny Meadows

Here is the furniture that we've chosen:
Crib - Chelsea Crib
Changing Table -Emma Combo
Glider - Glider and Ottoman

We're also staining a wardrobe we have to match the rest of the furniture instead of getting another dresser for the room.

What do you think that we can do to the walls to dress it up a little bit more? Stripes? Mural? Thanks for the input!