Eva I like. It's short, simple, easy to spell and it will age well.
I don't like the spelling Jaimee.
Jaime and
Jamie are fine, but you don't need two e's in the name.
Rianna is a nice name, but I much prefer the spelling
Rhianna. That is the original spelling and personally I think it looks the nicest.
I like the following combos:
Eva Jaime /
Eva Jamie,
Eva Riley,
Eva ChloeJaime/Jamie
Rachel, Jaime/Jamie
Hannah, Jaime/Jamie
RoseRhianna Sophie,
Rhianna Maeve,
Rhianna Phoebe