Raina is a bit, too hippy (Rain comes from the sky and all)
And Lucy, well, if I met Lucy Skye IRL, I'd start singing Lucy in the Sky with Diamonds. If thats what you are going for, awesome, but if it wasn't, well, there it is.
For the record, all my knowledge of The Beatles comes from watching Hard Days Night and Yellow Submarine in college.
Lucy is the best name from your list but I wouldn't pair it with Skye because of the song association. I like the Beatles but I wouldn't want my child named after a song about LSD. If the middle name has to be Skye I would go with Emma.
Re: Girl Name Help
I like Emma a lot though
I wouldn't use Lucy (as pp pointed out, the song Lucy in the Sky with Diamonds) or Raina (rain + sky = a little cheesy)
Skye is sentimental because our DS loves it and keeps suggesting it for his sister. It's not a definite, we just thought it was sweet.
Also kind of funny that the song is about LSD because those would be her initials if we choose Lucy! We definitely will avoid that combo!
I really dislike both Adeline and Emma but I think I'd go with Emma.
EDD for #1: 3/19/17