Are you wanting to keep the E theme for middle names? Personally I think something starting with a constant would sound better with Lorelei. Even more so with Rosalie and Elodie because of the long "e" sound. Tabitha might go well with an E though. Tabitha Elaine, Tabitha Eileen, Tabitha Emily, Tabitha Edith, Tabitha Eden, Tabitha Evangeline.
Yes, that was our plan. However, we realize that a lot of the names we liked did not work with any E names we could think of. We are not dead set on this trend, but if we found an E name we liked that sounded good, we would be happy to go with it and continue the E names. If not, I'm open to other suggestions too!