I haven't posted the last few days, and not sure this will be of any help to you, but here goes...
I enjoy the imagery of
Azure, as I picture "azure skies", with white clouds, so
Calla and
Azure together strike me as two nature names and azure skies above a field of white lilies feels entirely complementary.
Azure itself does feel a little awkward for me to say, being honest, and never has struck me particularly as something to call a person, though I do think it unexpected and refreshing as a middle name. Doubt people here in the U.S. would pronounce it the way you do, but perhaps where you are they would. If they do make it three syllables in Finland, I think it actually sounds prettier and more like a name.
I'm not good with two middle names but I do like
Lumi and, of your options, I would go with
Azure Lumi Maeve. The closeness of the "m"s bugs me a bit but, mentally, I've already got clearing snow clouds over snowy ground and to add
Alba feels too "bright white" and to add Thistle feels too nature-y. Also,
Maeve varies the rhythm, assuming you don't end up saying "ah-zur-eh".
(ETA): I happen to love
Maeve (and would put it in front of
Lumi, to be honest), but, thinking of
Azure Lumi's scene, I'm wanting to add "quiet" and you did say "exotic" so...Azure
Lumi Quiterie came to mind.
This message was edited 2/22/2013, 12:50 PM