Sometimes it's a subtle nudge to consider another designer. At other times, the voice is more matter of fact, explaining why a certain style doesn't pair with a venue.
This Marchesa? The beading may be too much. Do you want to try Jenny Packham? Reem Acra? A beaded belt might not work with this gown. That other gown was pretty, but it was too old. This is better. Are you going to wear a veil? Maybe a hair clip instead?