The key phrase above is that with the current genetics we are aware of, we cannot at the moment make that animal. However, there are differences in skin cells and eye cells. This is apparent in the case of Leucistics. The pigment exists, but the leucophores (cells in the skin that hold pigment) do not, and hence the blue or black eyes. As Lawrence stated above, red eyes typically come from a lack of melanin. However, with my statement above about differing cells in the eyes and skin, I think that one day it may be possible to manipulate eye color and skin color seperately. But, not yet. Many things yet to be done or figigured out with Ball pythons and snakes/reptiles/amphibians in general.