Rhianna - I like this a lot, especially as
Rhianna and Rhiana. I also like Riana and Rianna. But I feel like it's not usable anymore, as it has become a bit of a one-person's name, kind of like
Madonna.
Even when spelled differently.
January - I feel like she would become
Jan or Jannie which are both okay, but kind of bland. It's also a pretty gloomy month, even though I don't dislike it. Most people seem to.
Karma - I believe in it, but I wouldn't use it as a name.
Nira - don't really like the way this sounds.
Spring - love the meaning, but the sound isn't great.
Velvet - this sounds fine. I like it, but not enough to use.
Yuridia - sounds abrupt to me.
Jalisa - I prefer
Alisa. Jalisa doesn't sound nice to me and I dislike Jal as a nickname.
Dayanara - reminds me of sayonara. It's not great sound-wise.