Step 6:
Fold over these 2 lines.

Step 5:
Squash-fold.

Step 2:
Fold over these four lines.

Step 4:
Fold one flap straight upwards.

Step 3:
Valley-fold over the 2 lines at the bottom right, then over the 2 diagonal lines. And fold over the 2 lines at the top left.

Step 10:
Fold the triangular flap upwards.

Step 8:
Fold this edge downwards.

Step 9:
Press the edges downwards / flat.

Step 7:
Unfold the 2 folds again

Step 1:
The other side of the Origami paper is completely red.
Prefold

Step 16:
Fold these two edges upwards.

Step 15:
Repeat steps 12 to 14 on the other three triangular flaps

Step 12:
Pull open.

Step 11:
Repeat steps 5 to 10 on the other three flaps.

Step 14:
Close the model again.

Step 13:
Fold the triangular flap to the inside.

Step 21:
Prefold the tip to the spot indicated by the upper arrow.

Step 19:
Fold the flap upwards.

Step 20:
Repeat steps 16 to 19 on the other three same places of the model.

Step 18:
Fold over the prefolded lines.

Step 17:
Pull the upper paper layer upwards

Step 22:
Open the model

Step 28:
Now the model looks like this.

Step 25:
This is how the bottom looks.

Step 26:
Squash-fold this petal

Step 24:
Press inwards.

Step 23:
Sink fold the center.

Step 29:
Squash-fold this thin petal.

Step 27:
Repeat step 26 on the other three petals with more paper layers than the 4 thin ones.

Step 30:
Squash-fold the other three thin petals.

Step 31:
Curve the thick petals outwards and the four thin petals inwards.

Step 32:
Press / fold the tip of each petal flat from aside.

Step 33:
Done...

Step 34:
I made seven Poinsettia flowers.

Step 35:
Mountain-fold the leaf paper over these two lines

Step 36:
This is the other side, fold over these two purple lines.

Step 37:
Fold over these two lines.

Step 38:
Fold over these two lines

Step 39:
Press flat, see pink arrows.

Step 40:
Fold over these two lines.

Step 41:
Fold both edges inwards.

Step 42:
Fold these two edges inwards.

Step 43:
Press / fold flat.

Step 44:
I made about 15 leafs.

Step 45:
Fold a brown paper around a metal/florist wire.

Step 46:
Make about three stems for one complete plant, each stem is curved/bended a little.
Glue a flower to the top of each stem, the remaining flowers are glued to these flowers / between the existing arrangement.

Step 47:
Finally, glue the leafs to the stems

Wreath with paper Poinsettias

Poinsettia's