That explains it! If the rest of the image wasn't so good I'd have thought it was over-recovered highlights but I was pretty sure that wasn't the case.
These are really small things - I might well have attended to them and then decided that I preferred your version anyway:
- The hands are a bit fisty. Elegant fingers would be better.
- Even more twist to the body might have worked well, perhaps making her look even more slender and elegant
- I'd probably have shot from lower, and included less of the wall above the pelmet, maybe cropping through the pelmet itself. You'd see less of the train but I think the overall result would be a bit more majestic.
Then these depend on having time to process the image, but given time I'd:
- Straighten the wainscoting on the left of the window
- Tone down the bright curl of hair in front of the chin
- Brighten the fog a bit - even though I now know it's fog it still looks odd, esp in the top pane
- Burn the bright patch of floor on the left to match the right.
... usual disclaimer applies ... I am not really a wedding photographer ...