Celestial Wedding

Anyone doing/done a celestial type wedding? I'm loving the concept. Our colors are Lavender/lilac, Navy blue and gold.

So I was thinking long rectangle tables navy blue table clothes lilac runner and gold star/gold voltives with flickering fake candles. Not sure about flowers.

I'm afraid that, while the concept is nice, there is like a really thin line between it looking elegant and it looking cheesy.

My wedding is during midday and the venue is very brown, dark wood walls and dark brown flooring.

Any ideas or advice welcome.