Mia Isabel would mean "my daughter"-pretty cool! To make it more creative one could use
Isabella spelled in the Eastern European manner,
Izabela or
Izabella ( I like these because they are very phonetic and look very cool and are unusual! And the meaning is still the same)
Alicia Judith would mean " noble woman"- again pretty cool.
If you like the name
Summer then what about
Summer Eve, mayeb a bit corny but still kinda cool and definitely pretty!
Hope this helps!