Thanks! There are a lot of names here I like, and I expected quite a lot of the suggestions (like Sophie, Olivia, Catherine, etc) - all classic and lovely names, and I can see why they'd appear in the same list as my other two names. But they feel a bit too straight-and-classic to me, which might seem weird given what else I chose, but they just don't do anything for me. The other two names might seem ordinary to other people but for various reasons they were really special to us.
I really don't like Lucy - I don't know why. Love Rose and love Eleanor but can't use them. I like Phoebe and Imogen but DH thinks they are "boring" (apologies to all the Phoebes out there - I love it).
The names I love from the one you have suggested are Violet (I also love Vivienne, but DH won't have a bar of it) and Eliza. I also like Lydia (nn Lyddie), Orla, Jasmine, and Gabriella (nn Gaby). Can't persuade DH on any of them.
He absolutely loves Tess - it's his favourite name. But to me it suggests Tess of the d'Urbervilles - amazing novel, but not really a namesake I'd choose! Plus it was our second choice name for DD1 and it feels like giving DD3 the sloppy seconds just to plump for that.