Is this the final scene of your book when the heroine finally marries the man of her dreams? Or does it start with the wedding and things go pear shaped?
Maybe this photo inspires you to write a scene like straight from '27 Dresses'. Never the bride, always the bridesmaid. What about the bouquet in her hand? Did this lucky bridesmaid caught it, or does she just gets to hold it while the bride receives all the attention?
In case, you're writing something more sinister - does the red hair inspire you to plot a magical wicked witch story featuring a cursed wedding bouquet? Or, more modern, the nasty ex who wishes the happy the couple the worst of luck; the demon bride; the serial killer on her wedding to husband number six?
Your fantasy is your oyster. Happy writing!