Hallo, I have an important question on You. Where comes from the shadow in the picture. The top left corner is more brigther then down right corner. See attached picture.
Thank you for your answer.
ArtRage is to some extend a 3d program, in the way that paint have thickness/volume. In order to get that effect a light shines from the top left corner.
But usually it's not as visibel as you have displayed it there. I have only seen it when using heavy metalics in paper grain (or paint). Try looking at your paper grain and turn down the Metal dial.
Unofficial Technical Feature:
Light Switch: If you want to turn off the lights in your image, to remove the appearance of volume for the paint, you can do so by pressing F5.
But I do not recommend this!