First cousins, once removed?

Luke is always trying to explain to me how cousins, first cousins and removed cousins work. But everytime he explains it, it is different. Or I remember it wrong. I will just explain it the easy way: below are pictures of Noah and Grandma Michelle's brother's daughter, Emily. I guess that makes them first cousins once removed in Luke's world. I thought these were just the cutest pictures of Emily and Noah and I had to share them!