This painting is an example of the element texture. Texture can be physically felt or it can be implied which means cannot be felt, only be seen. You can't really feel how smooth the apples are but the highlights make the apples look smooth.
Watercolor Birds by Dean Crouser. Dean Crouser is an Oregon based artist who tries to keep his work simple, beautiful, and elegant. These birds are incredibly artistic and show an amazing amount of depth and emotion.