It looks like one long name to me. Try using punctuation next time so we can read it easily and give you an answer.
Which name do you like most: Caroline Adella Garcia, Caroline Evelyn Garcia, Caroline Ava Garcia, Caroline Faye Garcia, or Caroline Selene Garcia?
Since the first and last names have 3 syllables, you should avoid 3 syllable middle names. When you actually speak them they tend to sound like a list instead of a name. So the 1 and 2 syllable names work better. I like Caroline Faye Garcia and Caroline Ava Garcia.
