How To Draw Objects In Rotated Boxes

First, choose a 3D model in a box to use for reference.

Rotate it around until you have an angle where the object looks satisfying.

Lightly sketch the box.

Lightly sketch the object inside.

Lightly erase the pencils so that they are barely visible.

Tighten the sketch, still drawing lightly.

Lightly erase it again.

Draw the lines in ink.

Render, add lighting.

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