I like it. Though, I feel like Clarissa and Cecily sound too similar for siblings and don't really go well together. I like all the names individually, though.
I don't like it. I hate Clarissa and any name ending in "issa" because they're pwetty-pwetty and overly femme, and I don't like Allison or Cecily, and Layla is the best of the bunch but it still makes me think of a prostitute because of the "Lay" in it.