Here are the pairings for the Orthanc bracket in round 4 of the MELO. Again, the topics are characters from the Two Towers.
Joseph Olson faced off against Vladimir van Hoek to built MOCs based on Theoden. Joseph Olson advanced to round 5.
Bane of Seaguls faced off against Andrew JN to built MOCs based on Saruman. Andrew JN advanced to round 5.