The incredible inker Mark McKenna just sent me this "Tigra" based on a copy of Al Rio's lines to sell to help raise money for Al Rio's family in Brazil.
It's 11x17 on art board, signed by McKenna.
There are no original Al Rio pencils in this piece.
Here's a link to McKenna's long history in comics: http://www.markmckennaart.com/checklist.asp
Here's his facebook page: https://www.facebook.com/markinker