I think
Esme is terribly lovely. :) It's a little too close in look/sound to
Isla,
Emilia, and
Eva, imo though.
Nora (can't stand the H) and
Esme would be great for sisters, though.
Other suggestions for names you might like:
CleoNolaIrisCeliaMira /
MinaZoraGemmaPippaFelicity Ivy /
IvaAdaCallaLucyLyraLila(h)