Damn that's nice Sluce and the burgundy would be so much better than that floral monstrosity... Do you mean the whole seat cushion moves? Is there a reason for that? I would have thought that it would be one piece, but I means that you can throw a rug/throw over it in winter to make it less hard/cold/harsh (if it is?).
Oh! My opinion is bias but I do mix old & new together. For example I have some 60s furniture which is the same colour as MrN's oak (golden?) so we mix them & it looks good to us.