Its funny, it must be how they "shoot" Arrow but Amanda seems so tall, imposing while Naevia seemed so small that to be imposing she needed a sword half her size. The reverse is true for Katrina Law. She seemed taller in Spartacus than in Arrow. As for Manu... putting him into a suit made him look dapper but you had no doubt that Crixus could tear him apart. But put him in his deathstroke (minus mask) outfit and you realized this was a big guy, so stay on your side of the street!