You are more or less thinking the same was as I was when I had the idea - I was inclined to leave the actual artistic elements and writing to people better at it but I was thinking along the lines of rugged in so far as some visible scars / healed injury's on the chest and arms and only wearing something like a kilt and belt but topless (character has a flat chest so could be mistaken as guy even they are female if you don't look to closely). As for the personality of the character I was thinking reserved until you demonstrate enough strength to beat them then they reveal they are shy and kind of cute, with a preference to a more gentle sexual partner.