Here are my honest opinions:
None of these names are unique. Not even a bit. They’re just part of a huge trend (a trend ironically created by parents looking for unique names) of names that are completely made-up, misspellings of real names, or surnames/ boy names on girls.
Passion [name]Nevaeh[/name]: Sorry, but [name]Nevaeh[/name] is just awful, for all the reasons that people have said. Besides, it’s not ‘unique’ at all-- it’s #34 in the US, which makes it more popular than names like [name]Caroline[/name]. [name]Nevaeh[/name] is seen as a joke name on this site, and for many other people. Passion is almost worse than [name]Nevaeh[/name]. Other virtue names are [name]Verity[/name], [name]Hope[/name], [name]Honor[/name], and [name]Felicity[/name]-- these would serve your daughter much better in life while still being unusual.
Lyrik [name]Chanel[/name]: If you have to use a word as a name, why would you feel the need to misspell it?? It just looks like the parent didn’t know how to spell. [name]Lyric[/name] is miles better than Passion [name]Nevaeh[/name], though.
[name]Briar[/name] [name]Rayne[/name]: I like [name]Briar[/name]! It’s a lovely nature name. But spell 'rain correctly.
Gracyn [name]Carter[/name]: Yuck. This is amazingly tryndeeigh. Gracyn is in no way unique! Is it supposed to be the surname [name]Grayson[/name], or an elaboration of the lovely [name]Grace[/name]? [name]Carter[/name] is not feminine at all, nor even a legitimate name for either gender.
[name]Abygail[/name] [name]Rhea[/name]: This one is the best out of your list. But I’m truly curious-- why does it seem unique to you to take a classic name in the top 10 and misspell it like so many others have done?? I don’t understand it. [name]Rhea[/name] is gorgeous, though! I really like [name]Rhea[/name]. [name]Abigail[/name] [name]Rhea[/name] would be wonderful.
Here are some truly unique, legitimate names in the style of [name]Rhea[/name] and [name]Briar[/name]:
[name]Elodie[/name]
[name]Penelope[/name]
[name]Celeste[/name]
[name]Juniper[/name]
[name]Clementine[/name]
[name]Aster[/name]
[name]Calla[/name]
[name]Lyra[/name]
[name]Catrin[/name]
[name]Echo[/name]
[name]Iris[/name]
[name]Hera[/name]
[name]Sylvia[/name]
[name]Xanthe[/name]
[name]Anais[/name]
[name]Cerise[/name]
[name]Lilia[/name]
[name]Phoebe[/name]
[name]Cassia[/name]
[name]Rowan[/name]
[name]Bryony[/name]
[name]Vivian[/name]
[name]Juno[/name]
[name]Linnea[/name]
[name]Flavia[/name]
[name]Odessa[/name]
Good luck!!