SCI-FI Crate Sketch and testing hard surface VDMs

Sketching a kind of Sci-Fi Crate in the free time moments and proving another VDMs I created for hard surface sculpting.
And probing materials...

Sergio gabriel mengual scifi crate5
Sergio gabriel mengual scifi crate3
Sergio gabriel mengual scifi crate4
Sergio gabriel mengual scifi crate wire