I think phonetics is a tricky thing. Elinna looks very made up, and it might be pronounced [name]El[/name]-in-ah, but I would, with the double n, put the stress on the second syllable so it would sound more like [name]Elissa[/name], but with Ns, Uh-[name]LINN[/name]-ah, rather then [name]ELL[/name]-in-ah. I think trying to fix a problem with a phonetic spelling may increase the amount of people who guess wrong, because people don’t always grasp what you are trying to go for and have never encountered the name before.
[name]Ellina[/name] might be better, but might be called [name]El[/name]-EE-nah (stress still on the wrong syllable besides). It’s hard to make a name truly phonetic, yet still lovely. I would use [name]Elena[/name], expecting most people to say [name]El[/name]-AY-na, and even in some cases [name]El[/name]-EE-na, and correct them, try [name]Helena[/name], which can be pronounce HELL-in-a (hope your last name is not Handbasket), or just move somewhere that people drop their Rs (like New [name]England[/name]) and name her [name]Elinor[/name]. FYI, if you are in New [name]England[/name], or some parts in NYC and suburbs, [name]Elena[/name] would be pronounced E-[name]LAY[/name]-ner, [name]Elinor[/name] would be pronounce [name]ELL[/name]-in-aw. Consider it?