Here is a render of the shrub within Maya before it was edited in Photoshop. I've made sure to turn on Global Illumination and Final Gather within the renderer to give this render a more realistic look and make a sharper image. Furthermore, there are four extra lights added to the scene to produce the shadows, plus I've implemented another light source using a surface shader upon a large plane sitting to the left of the shrub, which introduces a sort of ambience similar to the sun's light.