Sophia, Lila and Elin are very pretty. My Dniece is called ElÃn, so I love Elin a lot. However, I prefer Erin.
Sophia is fairly popular (for good reason!) if you wanted to avoid that, although all my DC's names are in the top 20s, so don't listen to me! I think it also holds good nickname potential with Sophie, as Sophie is much stronger sounding, whereas Sophia is a more elegant sounding name, giving leeway for their personality.
Lila is short but strong and pretty and is my favourite from the list!
Annalynne sounds a bit made up although I've met one before. Maybe hyphenated Anna-Lynne, or a name like Annaliese would be easier, for spelling and because it sounds less exhaustive.
For the boys:I love Harry, very popular, strong sounding but can fit a variety of personalities. I would go for a longer name though- Harold, Harrison, Harris etc;? Simply as it could be better for them in adulthood. Although that is my personal opinion, and I love Harry loads on it's own.
Charlie is very sweet. I love it. My favourite of the list.
Finley. It sounds handsome. I love it too, but prefer Finnian/Finn.
Hayden. I really don't like the sound of it. I like Kayden/Kaiden/Caiden/Cayden though.