Efera: It has an "earthy" sound, fitting for an orc. I'd prefer a harsher-sounding name, though. 8.5/10 (although, 9/10 if she's supposed to be a Mag'har).
Katai: Very nice! A bit more elegant than most troll names, but that's actually fitting for a druid in my opinion. 10/10
Jus'ka Asima: The last name sounds more draenei-ish, but overall the name still sounds pretty good. 8/10
I'm Fizzaline Thoughtspark, inventor of the Arcanographic Spectrometer V2.
*takes a bow and falls over*