Step 1:
This paper is colored on both sides. Prefold over these 4 lines.

Step 6:
Press the 2 layers indicated by the smaller arrows against each other. Then press the loose piece flat from above with your other hand, see large arrow.

Step 5:
Pull the piece indicated by the arrow upwards by making a valley-fold over the green line.

Step 2:
Make a valley-fold over these 4 lines.

Step 4:
Make these folds from the edge of the model to the center, not any further. First, make 2 valley-folds below, on the right. Then, make 2 mountain-folds in the middle. And make 2 valley-folds on the top left.

Step 3:
Turn the model.

Step 10:
Press the edges that stand upwards flat from above, see arrows.

Step 8:
Unfold the folds from step 7

Step 9:
Pull the edge indicated by the arrow upwards by making a valley-fold over the green line.

Step 7:
Make a valley-fold over these 2 lines.

Step 16:
Repeat step 13 to 15 on the other 3 triangular pieces.

Step 15:
Push the 2 petals towards each other again, see arrows.

Step 12:
Repeat step 6 to 11 on the other 3 loose pieces, see arrows.

Step 11:
Fold the triangular piece above the green line downwards by making a valley-fold over this green line.

Step 14:
Fold the triangular piece above the green line to the inside of the model by making a mountain-fold over this green line.

Step 13:
Pull the 2 petals at the bottom of the arrows outwards, in the direction of these arrows.

Step 21:
Make bookfolds until you see the same as in the picture of step 22

Step 19:
Make a valley-fold over these (prefolded) lines.

Step 20:
Now you've made an extra petal. Fold the petal upwards by making a valley-fold over the green line.

Step 18:
Pull the upper layer of paper (see arrows) upwards, loose from the rest of the model. You can start pulling it loose on the places indicated by the arrows.

Step 17:
Push the 2 pieces indicated by the arrows upwards by making a valley-fold over the green line.

Step 22:
Make an inside reverse fold over these 3 lines. Do this by making a mountain-fold over the short line in the middle and a valley-fold over the 2 outer lines.

Step 28:
One flower is done...

Step 25:
Repeat step 24 on the other 4 petals.

Step 26:
Make a mountain-fold on the tip of each petal, see the very short green lines.

Step 24:
Make a valley-fold over the short green line below and a mountain-fold over the upper green line. Make the same folds on the other side of the petal, see  small arrow. Now you've folded the petal downwards in the direction of the large arrow.

Step 23:
Repeat step 22 on the 2 other same edges of the model.

Step 29:
This paper is for a branch, the backside is white. Fold it in half over the length a few times.

Step 27:
Curl each petal backwards. 

Step 31:
One branch is done. Use a smaller/shorter paper to make a smaller/shorter branch.

Glue a few branches together. Then glue as many flowers on the model as you want.

Step 30:
Now, just fold or roll it up however you want until you get something like the one I made in step 31.