I think it depends on the style and atmosphere you want to create in the room. If the room is a formal, traditional one like your picture, then one large showy pendant would look great. However if it is a modern or contemporary room then two ( or more) smaller pendants would be a nice feature. It would also pay to think about how much light you are expecting from the fitting, especially since it is a cathedral ceiling. Do you need the ceiling lights for good general lighting or just for atmosphere. Do you have any photos of your room so we can see a bit more?

It comes in three sizes, as well as only coming in the white. It'll be elegant over your dining table.

Have you tried a custom lighting specialist?

Thanks courtney. it's all finished and we love it. We chose a white glass back splash which really helps to brighten up the space. On a sunny day it's so bright I pull the blinds down lol! the photo looks alot colder than it is too. It's taken on my phone so not the best.