A lot of my clients ask me if it is ok to have no bridal party. Of course it is ok. Your wedding can be customised any way you like it. Having no bridal party means you can have more intimate photographs.
I would recommend having a nice backdrop, like a floral arch, just so you have a focal point for your photos.
One of my favourite florists is Petra from Pomp and Splendour.http://www.pompandsplendour.com.au
Petra does amazing floral installations, arches and bouquets. Any of these would be a beautiful addition for a ceremony with no bridal party.
Remember the entrance of the bride will be a lot quicker, if there is no bridal party. Therefore, let the music play for a minute or so, prior to the entrance of the bride.