An excellent model! In my opinion there aren't enough female Orc models. Thinking about it, if there were more female Orcs for others to use, there could be a campaign with all-female orc clan that fights against the Undead, the Demons and some lesser threats (Centaurs, Quillboars).
Also, it's good that you gave a link to a tumblr page with drawings of female orcs, really cool and awesome artworks!