All of these leaves are embroidered with long and short stitch using 1 thread with the center vein done in backstitch with 2 threads.
For this work, I used 4 different colors in a range of DMC threads.
You will find below pictures of the realization of a leaf with the positioning of the colors but without comments because for once, the pictures are enough for themselves. You will then find 2 other pictures of all the finished leaves to guide you in your work.
For a nice result, you just have to vary the positioning of the colors according to your fantasy.