Step 1:
Prefold in half. Then prefold the corner to this prefolded centerline, see arrow.

Step 6:
Now the square paper is folded into a triangle shape.

Step 5:
Fold the flap in half over the long line, then fold it over the short line.

Step 2:
Fold this corner to the prefolded centerline, see arrow.

Step 4:
Fold over the prefolded line.

Step 3:
Fold the flap in half over the long left line, then over the short line on the right.

Step 10:
Fold over the yellow line.

Step 8:
Fold over the prefolded lines, into a basic shape.

Step 9:
Prefold over these two lines.

Step 7:
Prefold over these three lines.

Step 16:
Fold these two corners inwards, see arrows.

Step 15:
Fold the edges outwards over these two curved lines, to reveal the dark green side of the paper.

Step 12:
Prefold along the edge and open the model, see arrow.

Step 11:
Press / fold these edges downwards over the prefolded lines.

Step 14:
Fold the flap in half over the upper line, then fold over the lower line.

Step 13:
Press / fold this edge downwards over the prefolded line.

Step 21:
Pull the edges outwards on several places, to make the model more 3d

Step 19:
Fold the third flap in half over the left line and to the right over the white line.

Step 20:
Close the six corners by folding over these lines. Use glue/tape if necessary.

Step 18:
Repeat step 14 to 16 on this flap

Step 17:
Fold over this line.

Step 22:
Press the bottom inwards a little

Step 25:
Open the leaf and press flat.

Step 24:
Pull and fold the leaf out of the stem

Step 23:
Fold the little stem around the leaf.