Casual, non traditional wedding dress thoughts?

We’re having a super small (less than 20 people) wedding ceremony in my parents backyard/garden area this October and then afterwards taking everyone out for dinner at a nice restaurant.

This is the dress I’m considering getting and wearing for my wedding dress. I really like that it’s flowy and casual but still pretty to me…for some reason I’m not feeling a traditional white dress and don’t want anything super fancy.

Thoughts please?