I think all of them are very celebrity. Haven Honor is Jessica Alba's daughters names, Sadie is Adam Sandlers, Harlow is Nicole Ritchie's.

Which is fine of course, but that's what I associate those names with.

I read Who magazine too much.
I could have written exactly this!

When I see all these name threads I think the same thing, ultimately if you and your partner like a name go for it.
If you have considered all the "implications" so to speak (ie, nicknames, references etc) and you are still happy than nothing anyone else says should matter!

Good luck!