I don't like the flow of two names ending in "a" in one combo so I eliminated these names.
Lucia Cassia (CASS-e-uh)
While some of these names aren't my style, these combos flow the best from your list.
Aurelia Isabel - my favourite
Little Liars! I came up wi that combo even before I knew the show existed!!! I was upset, but I still love the name.
I like all your first name choices except Spencer (seems way too masculine to my ear). My favorite of your FN options are Lucia (but I don't think your two MN options go that well with it), Seraphina (Clove goes well with it), Cassia (though I don't think Domenica goes particularly well with it) and Aurelia (Isabel sounds good with it).
Other suggested first names:
I actually really like the sound of Aria Spencer, but wouldn't recommend it because of Pretty Little Liars.
I like Lucia and Aria. Aurelia Isabel is my favorite combo of yours. I also really like Aria Charlotte.
I like using Domenica as a middle name, too.