I bought a copper paper towel dispenser awhile ago and while I love it and it looks good in the kitchen, something about it made me feel it wasn't quite right with our kitchen. That's when I realized to make copper work in a kitchen like the one that I want which would be a more traditional / english country kitchen / modern farmhouse the copper has to look vintage, not modern.
Observe: modern copper.
Vintage looking copper. See the difference?
Here's some modern looking kitchens with vintage copper things.
I have seen some kitchens where that modern copper look really fits but, for a modern traditional kitchen, gotta go with a vintage looking copper.