Nymphadora's eyes remind Remus of kaleidoscopes. He can recall as a child receiving one for Christmas from an uncle and looking in it for hours. He can do the same with her eyes. He'll never grow tired of them as he did the toy, for they don't have a staid amount of combinations. She uses this as entertainment for the children when they're visiting on holiday, changing various parts of her face in mockery of those they don't like, it's always been the younger ones who enjoy her eyes. Until Remus of course. He watches as she sits on the couch beside one of their mutual friends. This friend has a small daughter, about two years old he believes but cannot be sure as he doesn't have a reason to remember, Nymphadora usually does that for him.
He watches as Nymphadora places the girl in her lap, laughing and looking down at her and changing her eye colour from the pastel blue the girl is wearing, to the green of the couch, to the pink of the walls. The girl laughs and he smiles at the scene he's watching, something pulling at his heartstrings he hasn't felt in a very long while.
Nymphadora doesn't care about matching, which is something he loves about her. She could be very happy walking out of the house with red hair and violet eyes. She's worn her eyes every colour of the rainbow, delighting in the horrified expressions of Molly Weasley at the more red-shifted colours, and enjoyed the way she can make them match her favorite navy blue sweater exactly. He's watched her stand in front of the mirror and grin as she decided what colour they were going to be, and he's enjoyed every moment of it. From turquoise to violet, from emerald to coffee.
He thinks they're beautiful no matter what colour they are.
When they're at home, not going somewhere, just sitting reading or drinking tea or talking, she usually matches her eye colour to his, staring at his intently so she can get every detail correct. He finds this strangely endearing, and loves that more than any exotic, strange colour she can come up with, for when he looks at those eyes on her, they're not full of pain or sadness or grief but happy and vibrant, the way he wishes his could be.