Keeping a pure white wedding dress white is never easy - for a bride or a photographer.
The most impractical colour also happens to look the most magical on a wedding day and, with a little care, it remains looking fantastic all day long. If it does get dirty then what the hell - that ends up being part of the story of the dress and therefore the story of the wedding.
For the wedding fashion portrait with Francesca we just had to accept the dress would get a little trashed given the horrible weather and the dirty location - a few dirty marks were a small price to pay for such a great location. The stripes of sunlight would most welcome.
A little dirt does you good.