Baby Name Poll Results

I posted yesterday and got some helpful feedback, but I want to hear more opinions. I am torn between 4 names, are extremely similar so there isn’t really room for "oh we will save it for a future baby." Background-the name meanings are sentimental to us, as this is our second pregnancy, as we lost our first one at about 13 weeks. We have Evanna (ee-vah-na) which means "God is gracious" Eliana (ellie-aw-na) which means "my God has answered" Elianne (ellie-in) which has the same meaning as Eliana, and is a family name and finally Elena (ellen-ah) which means "bright shining light" Our only downfall is as thrilled as we are about having this baby after what happened. I read somewhere that a baby after the loss of a previous pregnancy is called a rainbow baby, is it inappropriate to name her in celebration of being a rainbow baby?? we are planning on having more children after as well.