Activity for Karla

I am having an outdoor wedding, but have no idea of how to decorate this gazebo. I was going to use deco mesh, but my sister says it will look tacky! Help my wedding is in three weeks! I have attached a picture of the gazebo, but the flowers...

I have paid off my dress, but kind of wish I had picked a more fitted one instead of a ball gown. Part of the reason is because my fiance mentioned he does not like ball gowns. What do you guys think about how it looks?