I like the h on the end of Sephirah, but I think it might cause confusion about pronunciation. [name_f]Sephira[/name_f] seems more straightforward. What do you think?
I would ditch the H on the end unless you are using this as a middle name.
[name_f]Sephira[/name_f] is just so much more elegant than Sephirah. The h on the end really throws me off.
Definitely [name_f]Sephira[/name_f] spelling instead of Sephirah. PersonallyI favour [name_f]Sapphira[/name_f] though.