It is interesting you have rejected Amelia based on popularity though as (with the exception of Verity) I have come across the other names on your list much more often than Amelia. Ds is 7 now and I can only recall meeting one Amelia but have heard the others lots.
fan - Amelia was the most popular girls' name of 2012 and it's also quite dated in the sense I don't know many Amelias outside of 2009-2012; I think Grace and Amelia may become the Claires and Helens of the 80s. Lovely names though.
The Verity that I knew was always called Vee as well, it's either a common nn for Verity or we knew the same one. Did she have ginger hair and work in human resources? I like the name Poppy but DD went to ballet with a Poppy and she was such a cute little girlie girl (Poppy, not DD) and I couldn't imagine the name suiting her if she grew into a tomboy. Harriet is great, it reminds me of the Harriet the Spy book She might end up as Harry but you never know, she might be one of those children like my own DD who has a name that can be shortened but you risk your life if you do it...
My Amelia is a 2009 one. Only one in her class (and year group) so I'm pleased about that. We don't shorten it, as its commonly shortened to Millie which I really don't like. (I know Bout 5 dogs called Millie)
Very jealous you get to use Harriet as dh won't consider it. Also not keen on the nn for Harriet too.