I would color the leaves in this coloring page by using a combination of greens and yellows, to give them a natural look. I would add some pinkish tones to the center of the leaves to highlight them and bring out the subtle details. The stem can be colored in brown and beige, while the edges of the leaves can be darkened by using a darker shade of green. The cherry fruit can be colored in a bright red and the pedicel can be colored in a greenish shade. Finally, I would add some subtle shadows to the leaves and the stem to give them more volume and texture. All in all, this picture combines warm autumn hues with the softness of the cherry leaves to create a pleasant and peaceful scene.