I love the name Caroline she's gorgeous and Michelle sounds lovely with Caroline it's a cute combination. Yet, I do find the Lela nickname a bit of a stretch my immediate thought was no, I understand why you'd like to go their but if Caroline is with the LINE pro. which is the nicer pro. then it's not going to work at all. Carolina maybe better especially with the LEEN pro. or you could have it as a second middle name. Caroline Lela Michelle would work nicely as well.
Suggestion Catalina? That would work with the Lela nickname and feels similar to Caroline.