The Children of Húrin - Props 3
Props designs: Noldor elves' fortress battle engines and projectiles. None of them in this group are mentioned in the book, although they would be intended to be used in a possible film based on The Children of Húrin, the book written by John Ronald Reuel Tolkien but edited and finished by his son Christopher; specifically as part of the Fall of Nargothrond subplot, and also in a film based on another one of the Tolkiens' books, The Fall of Gondolin.
Check out Nargothrond's environment design:
https://www.artstation.com/artwork/QKgxwr
Mangonel trebuchet design
Mangonel trebuchet details
Mangonel trebuchet thumbnails
Hot fluid cart design
Hot fluid cart details
Hot fluid cart thumbnails
Hot fluid canister and solid blunt projectiles design
Hot fluid canister projectile thumbnails
Solid blunt projectile thumbnails
Environment and keyframe concept, foxhole with mangonel
Final base 3D model, foxhole with mangonel concept
Foxhole with mangonel sketch 1
Foxhole with mangonel sketch 2