What have omitted for a perfect wedding ceremony?

To have a perfect wedding ceremony, everything will be at hand: wedding dresses, accessories, makeup, shoes, photographer, venue, food menu, bridesmaid, groomsman, flowergirl.........

If we want to have a perfect wedding ceremony, what should be well prepared in advance. Now, we have got these:

wedding venue
wedding theme
photographer
food menu
cake, sweety
flowers
other decorations for celebration
wedding attire: wedding dress, groom suit, bridesmaid dresses
bridesmaids, groomsmen, flower girl
music and invitations

Any other ideas you'd like to add? TKS.
By way, where to find super dresses for bride and bridesmaids. How about edressit.com i have mentioned before.