Art made with only folds on paper without using brush

Paper art produced by German artist Simon Schubert. Shading is made by attaching a crease to one piece of paper, and the appearance of the house including a lot of straight lines in the composition and the interior are depicted brilliantly.

Details are as below.
Simon Schubert
http://www.simonschubert.de/papierarbeiten.html

A house emerging on paper.

A room with a mirror.

Huge staircase.

There is a clear fold that feels a little floating in the center of the paper.

A patterned floor.

A staircase that continues as it folds back.

attic.

A corridor where a mirror was installed at the end.