Please pick apart my list.

I like Eloise, Phoebe and Heidi
Not keen on the others

I have a Phoebe so rather bias of your other names I love Elise and Heidi

Eloise - not keen, but nothing wrong with it just think there are nicer names
Phoebe - like, although quite popular
Ivy - really like
Serena - like, but imagine yourself shouting for 2 year old serena as she throws a tantrum in tescos. seren is nice as an alternative.
Elise - makes me think of a sports brand, and slightly of lice so don't like. what about eliza?
Ariella - like but prefer arielle
Elyssa - don't like, sounds made up
Eva - lovely but quite popular
Grace - ok, also popular
Ava - nice but extremely popular
Heidi - bit twee for me, not sure if suits a grown up
Paige - really dislike. there are so many lovely girls' names have never understood why anyone would choose this, it does not sound or look nice or have a particularly nice meaning.

so, in summary i think i like ivy best from your list, then eva and phoebe but would be put off by their popularity. also arielle or eliza (though not actually on your list!)

Love them all except Phoebe (reminds me of Friends) and Elyssa as think it's too frilly somehow. I really love Paige, though don't go there if your last name is Turner

Congratulations!

Eloise - I like the sound but I think it looks ugly written down.
Phoebe - like lots and know several.
Ivy - I am not into old-lady chic but lots of people love it.
Serena - not my style but classic and elegant.
Elise - don't like
Ariella - a character on Tree Fu Tom I could cheerfully exterminate. Nice name spoiled!
Elyssa - Hideous. How did this get on your otherwise classy list?
Eva - boring.
Grace - vastly overused.
Ava - see Eva. And expect to have to correct between them forever.
Heidi - I know several but like.
Paige - yik.

Don't particularly like Paige, ivy, Elyssa or Elise ( not heard of last two names). Love the rest of your names.

Too many Evas and Graces, otherwise all unusual. Ariella is my fave if i had to choose.

COngrats btw

Eloise - lovely
Phoebe - cute, I like it
Ivy - not keen, coronation st connotations for me
Serena - won't comment as went to school with one who wasn't very nice
Elise - nice but Eloise seems less harsh?
Ariella - Tree Fu Tom
Elyssa - not that keen
Eva - pretty but possibly overused (if that bothers you, doesn't bother me)
Grace - a bit 'meh' for me but a pretty name
Ava - beautiful name but would feel like I was copying celebs if I used it
Heidi - Love this
Paige - don't like this, don't know why. Think it's a bit masculine sounding for my liking.