Ok, lip colour comparison. Identical colours, identical lighting. Bottom 4 are the darkest red, in both direct lighting and shadows.



full size: http://i.imgur.com/S1XZtFc.png

Probably easier to see the differences full size.

Oh, this is an older version of my au ra that had slightly darker skin. My current au ra has lighter (same as elezen basically) but the lip colour remains the same.