It being #orktober, I have painted this ork from Ramshackle Games. Regular-sized model for scale.

https://cdn.masto.host/dicecamp/media_attachments/files/111/170/034/241/644/279/original/4fc3b5a3512b22cd.jpg 

 Examples of stories in which an antagonist waits at a choke point and threatens/challenges people who come through. Knights challenging at fords in Arthurian romance, Robin Hood and Little John, Monty Python & the Holy Grail ... what are some other good ones?