Rinse your brush and mix green with enough black to make a very dark green. A dark color behind the leaves and flowers will make them stand out. Paint this color from the top down to the bowl. Let the paint dry.
Use a white pencil to draw different-size oval leaves Start with a cluster at the top, then work down Overlap the leaves and draw a few that hang over the edge of the bowl. It's OK to have irregular spaces between the leaves.
Your lewes should look something like this
Use a smali or medium brush and green paint to paint all the leaves at the very top of your rock. Then use this same color to paint other leaves here and there.