I want to give my first dd the cutest, girliest name possible, yet still have it sound clean and mature so it still works for her when she’s older! I’ve had miscarriages for the past 4 years, She is going to be my [name_f]Rainbow[/name_f] [name_u]Baby[/name_u]. This is absolutely huge as there’s a great chance she will be my only child, I want her name to be beautiful and perfect. <3
Anywho, Here is my little list so far! Please comment OP’s, suggestions, anything you got 
- Aliya Raine

(Simply love this, it screams girly girl to me and I think it will be usuable all through her life, But again Aliya is sort of simple/old school…)
- Heidi Blair

(I love it but I don’t want to name her something too simple/bland…)
- Imogen Lace

(Losing interest in this name slowly…)
- Jewel ?

(Can’t think of Middle name… Some opts are Eilish, Eirlys, and that’s all I got eek)
As ya’ll can probably tell, I’m in need of some helppp!
xoxoxo
Also wdyt of the name Aislinn? (Ash-Lyn)
I like [name_f]Heidi[/name_f] and [name_f]Imogen[/name_f] from your list. [name_f]Aislinn[/name_f] would probably get butchered.
[name_f]Heidi[/name_f] [name_u]Blair[/name_u] is gorgeous, a real mix of pretty, fun and sophisticated.
[name_f]Aliya[/name_f] [name_f]Raine[/name_f] is my second favourite and [name_f]Imogen[/name_f] [name_f]Lace[/name_f] is lovely too.
[name_f]Jewel[/name_f], however, is not likely to age well and doesn’t have the same beauty as your other names do.
Have you considered [name_f]Iris[/name_f]? It means rainbow!
I like [name_f]Imogen[/name_f] [name_f]Lace[/name_f] the best!
Other suggestions would be:
[name_f]Indra[/name_f]
[name_f]Glory[/name_f]
[name_f]Clementine[/name_f]
I like the sound of [name_f]Aislinn[/name_f] a lot, but I think you’d be better of spelling it [name_f]Ashlyn[/name_f] or [name_f]Ashlynn[/name_f] at least if you’re in the US.
[name_f]Heidi[/name_f] [name_u]Blair[/name_u] has a nice ring to it; I think it’s my favorite.
[name_f]Alia[/name_f] [name_f]Raine[/name_f] is my second favorite.
Congratulations! [name_m]Just[/name_m] a thought, but I think it would be really neat to use [name_f]Iris[/name_f] somewhere in her name, since [name_f]Iris[/name_f] means rainbows!
[name_f]Iris[/name_f] [name_u]Blair[/name_u]
[name_f]Iris[/name_f] [name_f]Ophelia[/name_f]
[name_f]Ophelia[/name_f] [name_f]Iris[/name_f]
[name_f]Iris[/name_f] [name_f]Amelia[/name_f]
[name_f]Amelia[/name_f] [name_f]Iris[/name_f]
I love [name_f]Aliya[/name_f] and [name_f]Heidi[/name_f]!
Have you thought about Gemma Blythe ? It’s the first combo to pop into my head when I thought of girly.
Gemma means precious stone and Bythe means happy or care free
Another maybe if you don’t think Gemma will age well is Evangeline Blythe/Blair ?
Evangeline means bearer of good news and has the bonus of having Angel in it. I always think of it as very girly, pure, and almost heavenly if that makes any sense. Plus it gives you tons of nn options Evie, Angie, Angel, Lina off the top of my head.
Out of your list I love Heidi Blair!
I really love [name_f]Heidi[/name_f] [name_u]Blair[/name_u], I think it’s really sweet for a little girl but also becomes sophisticated on an adult.
Second favourite is [name_f]Imogen[/name_f] [name_f]Lace[/name_f], although I really like the PP idea of using [name_f]Iris[/name_f] and am such a sucker for a good alliteration name that I’d also consider [name_f]Imogen[/name_f] [name_f]Iris[/name_f] 
I love [name_f]Aliya[/name_f] [name_f]Raine[/name_f] and [name_f]Heidi[/name_f] [name_u]Blair[/name_u]!! Both absolutely stunning and fit your criteria to a T!
[name_f]Imogen[/name_f] a bit eh and [name_f]Jewel[/name_f] just feels rather tacky to be completely honest.
I’ve always liked [name_f]Aislinn[/name_f] but have only ever heard it pronounced Aiz-[name_u]Lynn[/name_u] (long ‘a’ short ‘i’ sound in lynn). I strongly dislike [name_f]Ashlyn[/name_f] - just feels rather dated.
The first name that came to mind when reading your list was Allira! A gorgeous girly underused name :).
[name_f]Tess[/name_f] (simple but super girly and very sweet :))
[name_f]Felicity[/name_f] (think this name fits perfectly)
[name_f]Anabella[/name_f] (frills all round and plenty of nickname options!)
[name_f]Sienna[/name_f] (love!)
[name_f]Lilia[/name_f] (any [name_f]Lily[/name_f] name is definitely girly!)
[name_f]Delilah[/name_f] nn [name_f]Della[/name_f] or [name_f]Lila[/name_f] (love!)
[name_f]Philippa[/name_f] nn [name_f]Pippa[/name_f] (both names are gorgeous and would suit a little girl and grown woman)
[name_f]Evangeline[/name_f] (this name just scream girly for me)
[name_f]Lacey[/name_f] (literally means [name_f]Lace[/name_f])
[name_f]Natalia[/name_f]/[name_f]Natalya[/name_f] (either spelling is gorgeous with an exotic feel)
Congratulations! I love the suggestions of [name_f]Evangeline[/name_f] (so girly! such a perfect meaning!) and [name_f]Imogen[/name_f] [name_f]Iris[/name_f].
I really like [name_f]Heidi[/name_f] [name_u]Blair[/name_u]. So unexpected and lots of personality! Others are too wishy washy for me, although I think [name_f]Imogen[/name_f] has potential with a different middle name.
My favorite is [name_f]Heidi[/name_f] [name_u]Blair[/name_u]. I also love the suggestions of [name_f]Imogen[/name_f] [name_f]Iris[/name_f] and [name_f]Gemma[/name_f] [name_f]Blythe[/name_f]. Not a huge fan of [name_f]Aliya[/name_f] or [name_f]Jewel[/name_f].
Other ideas:
[name_f]Linnea[/name_f]
[name_f]Liliana[/name_f]
[name_f]Jocelyn[/name_f]
[name_f]Juliana[/name_f]
[name_f]Genevieve[/name_f]
I love [name_f]Eilis[/name_f] but the pronunciation would be a pain I think. Agree that [name_f]Ashlyn[/name_f] feels a bit dated because of the similarity to [name_u]Ashley[/name_u]. [name_f]Ailsa[/name_f] is an alternative I like.
Alyia [name_f]Raine[/name_f] is fantastic! I love it a lot and would age wonderfully.
Perhaps instead of jewel you could go with [name_f]Pearl[/name_f]?? [name_m]Even[/name_m] [name_f]Pearl[/name_f] Alyia Goes well 
I love [name_f]Aliya[/name_f] [name_f]Raine[/name_f], but not a big fan of the other 3. Congratulations! 