Don't you love it when someone wants you to read her mind? I would either continue with the quilt I had in mind using the aboriginal prints, or ask her specifically what she meant by a quilt that would "reflect the country of Australia." It's a huge country, after all. Maybe she wants a giant kangaroo on it. Or maybe a landscape quilt with Ayers Rock.
Those quilts by nativetexan and Carol Wilson are gorgeous. Very different, and yet each reflects Australia beautifully.