Oh goodness! A design dilemma indeed. I'm so looking forward to see other's suggestions. My thoughts: it's not visually pleasing even from an eclectic perspective. It competes too much with the style of the windows n' door because they're so close to it. Dr. Who revisited - I'd fill the gap spaces in and shave off the cinema circles of the middle larger circle.

This design is unique , I feel like I'm looking at a Star ship ceiling , I would go with a metal finish paint on this one .

@genieveve: Can you suggest thise metallic paints colours in details...it would be really kind and helpful to me

A less expensive option... fabric, but installed/designed/shaped in a way to avoid the ceiling looking romantic or like a wedding reception.

I was thinking of this example


and this for light fixture