Many times clients will take work and turn it upside down internally.
This may happen the next day, or after 6 months and when it does, its generally their decision and nothing to do with what you delivered 6 months ago. Presumably, having paid for the work, they own the work, so they can do anything to it, with or without asking for your opinion.
I'd just show what was delivered and paid for, and not worry too much about their internal changes. They could change it again next month.