Hi saphirdufeu !!!
Ravenna is not used at all as given name in Italy. I personally prefer
Rowena (f) or
Raven (unisex).
Kellen seems unusual. I prefer Kellan but also this one is not my style.
Kelly (unisex) or
Killian (m) are far better.
Personal Name Lists
https://www.behindthename.com/pnl/125456