Most of these names are pretty nice. However, I think Reslynn is really weird, and Joyanna sounds like a messed-up version of Joanna or Johanna.

Also, if you're looking for unique names, I wouldn't go with names that contain the -aid sound ;).
I really like Elijah and Ellie, and Julianna is nice too!

Other suggestions (quite a lot of J's):
Sophie
Jillian
Josephine (Josie)
Jelena (it's Russian)
Juliet
Joni
Geneva
Juna

I'm sorry I don't have to offer any boy names! I'm worse with those ;)