What would mixed race characters look like?

[TBerry]

I imagine that there would be dominant traits with each race, such as a Viera's ears and lifespan, an Au'ra's scales (al least somewhere on the body, a Roegadyn's build, a lalafell's size, etc.
Half-Viera would probably have shorter ears and lifespans, but still at least twice of the average Hyur or Elezen and stay youthful longer.
Half-Lalas could be shorter in size, and have somewhat pointed ears and stubby noses, but are plumper in build.

Or maybe with some it wouldn't be apparent at all.