Generally don't like prints with a white background, but this is pretty.
I think it depends on the kind of wedding. And the kind of bride.
Strapless, long and white....(even with a print) might be pushing it a bit if she is not in superformal bridalwear, or if she's bridezilla-y
If you kept on a coloured shrug and had coloured shoes/bag. And Hair not "done" too bridally, then ok