Step 1:
Both sides of this paper have a different color.
Prefold in half, then fold the edges to the centerline.

Step 8:
Fold the edges upwards over the pink lines and downwards over the white lines.

Step 6:
Fold over the prefolded line

Step 13:
Fold the edges upwards over the curved lines.

Step 12:
Fold the edges downwards

Step 11:
Fold over these two lines

Step 10:
Fold the flap on the right upwards.

Step 9:
Make an outside reverse fold on both edges

Step 5:
Fold over these four lines.

Step 7:
Use the prefolded squares pattern as guidance.

Step 3:
Repeat step 1 and 2 in the other direction.

Step 2:
Fold the edges to the centerline, then unfold the model.

Step 4:
The prefolded squares pattern is used as guidance in the next steps.
Fold the edges half a square of the centerline.

Step 14:
Fold the bottom edge inwards, do the same on the backside

This is an Origami video tutorial for folding the throne :