My wife and I had the opportunity to see the poppies at the Tower of London first-hand in early September, as the display commemorating the soldiers that paid the ultimate price in World War 1 was being prepared. This is what we saw:
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As impressive as it was at the time, the display then is not a patch on the moat today, now that all 888,246 poppies have been "planted". The poppy had huge significance for the allied soldiers on the Western Front. It continues to be significant for their descendants. I am looking forward to visiting the commemoration again, on Monday 10 November—along with a great many others, I suspect.