I wonder how much time passes during Diana's aging from child into adult? The other characters appear to look exactly the same, so they definitely have the slowed aging thing going on. Does it take Amazon's like 200 of our years to age from a baby to what we consider 18?
Good question. I think the common belief is that they age normally up to a certain age and then the process is slowed down dramatically. Wonder Woman in BvS was said to have been over 5,000 years old in the official materials.