As usual, I'm gonna ask what the source was. Aren't I helpful?
Comments...
Dawn - Decent enough.
Lukas - Same as above. Also sounds kinda like "lunar," if we're comparing dawn to dusk. Sorta. Kinda.
Roark - Meh. More creative than Roxanne, but it looks a little dumber.
Gardenia - I actually really, really like this one. Reminds me of Gardenia from the .hack games.
Maylene - Umm... is it a play on Meilin from Cardcaptor Sakura? *shrugs* Decent, but it doesn't stand out.
Crasher Wake - This sort of reminds me of Lt. Surge, with the atypical name structure. I'll have to wait and see.
Fantina - Hmm. Sounds more like a fun-loving person than a run-of-the-mill Ghost enthusiast to me. If she turns out like Phoebe, it'll fit. An Agatha-type character with this name will make me wince.
Byron - Ooh, a classy name. Reminds me of Lord Byron, a famous poet from the Romantic period. I've got a good feeling about this one.
Candice - Ehh, obvious pun. It's not bad, but it's not that good, either.
Volkner - Hrm, I didn't make the Falkner connection until I read your post. Still, seems like a very off-the-wall name. We'll see.
Aaron - I feel like I should know this, but all I can think of it "Aron." Still, decent enough name.
Bertha - Sounds like a fat joke. Not that it's a bad name, but they probably could've done better.
Flint - *wheezing voice* Brock... I am your father... If it wasn't for that, it'd be perfect. Now, it'll be... interesting.
Lucian - Sounds sort of like "Lucius," as in "Lucius Malfoy" from the Harry Potter series. Not bad.
Cynthia - I don't really know the significance. Cynthia does sound sort of like a "grand" name aesthetically, though. *shrugs*
Anyway, I'm actually somewhat impressed with these overall. Wasn't expecting any treasures like Byron and Gardenia.
And yes, Gardenia is a name. I'm not kidding.
EDIT: Gardenia
mr_pikachu. Driving the point home since 2002.