The way the shoulders and chest are high to the head. Make head look tucked in. Also the shin armour
Monster Sketch Dump by Josh Corpuz on ArtStation.
knight by aobtd88.deviantart.com on @DeviantArt
Concept Study, Dongho Kang on ArtStation at https://www.artstation.com/artwork/concept-study-20
ArtStation - 2017.4.4, jinglin Xu
Ojo de Judas el Sacro