Ottilie Alice -- Darling. This is my favorite of your combinations. It flows beautifully and the two sit nicely next to each other. They seem to like each others' company. The combination has an easy elegance.
Ottilie Rosamund -- as much as I adore both names they are a tad bumpy next to each other when said out loud.
Ottilie Mirabelle -- Ooooh. Now you're tapping into the vampy, 20's vibe of
Ottoline. I can see
Theda Bara hanging out with
Ottilie Mirabelle on the set. They're ready for their close up, Mr. de Mille. I prefer to spell it Mirabel because that's how the Latin word for miracle is spelled (I believe) and it looks more exotic with the "bel" ending. But it's a minor quibble.
Ottilie Mirabelle is great too.
Ottilie Elda -- Someone actually knows
Elda exists? This fact alone makes me love the ocmbination.