Hi there,
As the trans babies age and grow, their skin thickens up a bit, so they lose the transparent look. So the blue belly will disappear with age.
As for how she will look as an adult, that will largely depend on how the parents looked. However, most hypo zeros do tend to stay pretty white looking. Then trans does seem to darken them a little sometimes. But they stay white much better than the hypo witblits do.
By the way, we love pictures... :wink:
-Brandon