Daniella, with the "el" sound and -ella at the end, fits well with other names that are popular now, I think.
It is versatile.
However, with
Danielle having been so popular in the 80s, at least in the U.S., I think
Daniella might not catch on.
I know you weren't asking about whether it would become popular, but these are the thoughts that came immediately to my mind.
Anyway, it does have a nice sound and it's extremely versatile.
Samuel and
Daniella go together nicely.