Step 1:
I used three different paper sizes for the flowers and for the leafs. The flower cluster stem is made of a paper square and the leaf stem out of a smaller rectangle.

Step 6:
Curl the four petals by rolling them up.
And fold the tip sidewards, to make it easier glueing it to another flower.

Step 5:
Fold the tip in half by making a rabbit-ear fold.

Step 2:
This is the largest flower paper, about 15x15 cm. The other two flower papers are about 11x11 and 7,5x7,5 cm.
Fold over the purple line.

Step 4:
Press the right part flat.

Step 3:
Lay one end over the other.

Step 10:
This flower tip isn't folded sidewards, glue it inside the opening of the stem.

Step 8:
Glue the flowers together.
The largest flowers go on top of the cluster and the smallest at the bottom.

Step 9:
Fold a green paper square in half about four times, curve it afterwards.

Step 7:
One single flower is done.

Step 16:
One leaf is done....
Fold leafs in three different sizes.

Step 15:
Fold the prefolded centerline a little sidewards.

Step 12:
The largest leaf paper is about 7,5x7,5 cm, the others are about 5x5 and 3,5x3,5 cm.
Prefold in half, then fold over the two outer lines.

Step 11:
And one large flower cluster is done.

Step 14:
Fold the tip flat by making a rabbit-ear fold.

Step 13:
Fold over these four lines.

Step 19:
Glue the leafs to the stem, the largest on top and the smallest below.

Step 20:
And one large leaf is done.
Glue one to three of these large leafs to each flower cluster.

Step 18:
Fold in half one more time and curve the stem a little.

Step 17:
Fold a green rectangle around a metal / florist wire.