A simple study of light

I took several photos of some flowers we picked in our backyard yesterday with my iPhone. I just took them for a record so I could possibly work on identifying them with my children. I think they do a good job of demonstrating the effect of light direction.

This first was taken with the camera flash on (coming directly from the iPhone). Notice how it effectively flattens the appearance of the flowers in the water. This might be the look you are after or it might not.
I find it very interesting.

In the next two I simply turned the flash off so that the flowers were lit by the light coming in from the windows to my left. Notice how the flowers appear more dimensional.
But in the first, the large flower is turned away from the light. Notice where your eye is drawn.

In this last one, I turned the large flower to open toward the light.