Add an upholstered headboard and new bedding that goes with the Sea Salt paint. White bedding with an extra throw would be welcoming. There are many throws in the sea salt range of blue green because it is a currently popular color. Add new white curtains, new pillows, and turn the bed so it is against the wall.
Add some new artwork or use some from elsewhere in the house.
Put your son's things in the closet where they will not get dusty.
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