Hi first of all i want clarify two thing
 

1. for the nail  the nail not are out in a specific template is a merchant resource and if are able you need put it  in the right position

 2)  the eyes i use  it in mine own product and i not find any of the problem you tell but if you want why simply not rotate it.

Is an add on for  merchant resource not a complete  texture set that like i can see by mine report  if you have bough mine me other time  the eyes are all done in the same way and you are the only that have found problem, I can help you if you not know like rotate it this si what i can  but i think that before to put some in the forum you need ask at the merchant.
I'm always ready to help ask at you want i can do a lot of thing if you ask   but if you not ask i'm not a mage.
I hope this can help regards Orietta

bye bye ans kisses ^_^