Cadence (love it with a K)
Peyton (what about Peyson/Payson, i think thats gorgeous)
Seraphina (we very nearly called our dd this but ended up naming her Sapphire)
Temperance (love this, love names like this)
Samara (i do like this name)

Those are the ones i like from your list, just thought i would suggest Vienna too. Its nice and pretty but unique, i have it as one of my dd's middle names