I like the last link, the estelle sparkle best.
Brides dress is lovely, big bridesmaids depend on colouring of bridesmaids. I'd be afraid of looking a bit washed out.
Anyway congratulations to your niece, I got married in my second year at uni and was planning making hair decorations when I should have been revising. Not PG just when DH finished his course and we could live together full time not just at weekends.