Also with older textures, you have a mixed bag when it comes to bump maps. So many of them just use a grayscale version of the diffuse map, but not enough attention is made to hair, most especially body and facial hair. On the texture map, the body and facial hair is darker than the skin. If you just use a straight color to grayscale conversion, the darker body hair will have the appearance of sinking IN to the skin, rather than being raised from the skin surface. Most times, female textures don't have a lot of body hair and it's easy enough to recreate the bump map to lighten brow hairs. But in the case of male textures, it's near impossible to "invert" all that body hair.