It's kinda hard to exclude the similarities to luau and Kahlua when I think of it, because that's all I think of. :P Upon first glance, trying to put those associations out of my mind, it seems a little insubstantial, but it's growing on me fast.
Of your combos, I like/love*
Lua
MartineLua
Faustine*
Lua
MireilleLua
CapucineLua
Delphine* (I like the colors I get here, soft greens, aquas, and all shades of blue)
Lua
DaphneLua
SeverineLua
SylvieLua Janvier
If I were to give her a middle name...
Lua
MaelysLua
MaelleLua
CoralieLua
VivienneLua
ChantalLua
MarisLua
MorriganLua
DanaeLua
Filippa
If I were to give her siblings...
CallaMailePetraHanaKaiaEveAurora