Me again.  
 
Doreen said, "... AFTER review you CAN change font choice, change the layout, border and so forth.  You CANNOT replace the image with a DIFFERENT image . . . nor should you change the text to something other than the example of changing the year which of course is fine or correcting a spelling error, that type of thing.  
 
 Keep in mind that the image and the text have been approved so swapping the image with the same image only modified to improve it is usually okay, but to change the image with a different image or making major adjustments to the image should always be something that is deleted and sent for re-review."
 
I think you should be careful doing this, yes, but if a card isn't selling and as long as I'm using a similar image or vastly improving an image that fits the category, I think it would be worth changing some things up.  The PID# is already there and everything else can be edited aside from the categories.  As long as the image matches and with what should be more experience, what's wrong with saving the reviewers and your valuable time?
 
Only my opinion and I will emphasize the "BE CAREFUL" though!  Be sure you have a strong image and inner verse otherwise if you aren't sure, then the review process might be your best bet.  That's only my opinion.  Also if a card was returned that you had edited after review, I'm sure you would be responsible for the return as well.  
 
Maybe Mindy can clarify this further?  
 
Best always, Randy