Wedding Theme Idea- Blushes and Lace in a Green Garden

Imagine rose-wood blush, tweed rose, lace, delicate white flowers, and a touch of gold on the dresses and table. Creams, White lilies, rich green leaves, chiffon, and a touch of gold on the background. How about an arch made of leaves and lilies as a photo back drop? lilies hanging down, willow leaves, hints of blushes and peaches. I want people to feel the wedding is delicate, fresh, yet fancy. I am quite inspired by an outdoor wedding and obviously I know I have to match my wedding style to our venue- which is obviously a lot more grand than "fresh". I don't want to waste the grand ballroom but is it possible to add a touch of nature to the indoors? It's just an idea.