Hi Rubble,
Can we apply the same Gradient effect on Transparent Image that you applied here (https://www.sitepoint.com/community/t/gd-text-gradient/82127/8) on Text ?
Here is the example of Image: https://drive.google.com/file/d/0BxPo3IyOtZgHYjRzYWR3N2ZLNlk/view?usp=sharing