I am getting married in October and need help deciding if my theme idea is a good one or not.?

I am wanting to do a kind of starry night theme, colors would be navy blue, ivory, and silver. With twinkle lights everywhere. white roses, with a blue flower to tie in the navy, silver table covers with glitter. Star decorations, you get the idea. Just wondering if this sounds like a good theme or no should I do something else...i am just starting the planning process..