So much thoughts and all wrong D: i do it all easier :D duplicate layer with bevel, change the side of light to where it comes from, change the color, merge the layer and its effects with a null one and delete right and left side with soft brush :D and for the light ray itself, well its much more easier :D 2 brushes, both with blending effect on light/screen (Blue color) one stretched on width for like 150% of its round size and second one that is like 10 times smaller stretched over the whole surface and then u just delete the sides with soft brush, because with motion blur it will not have the brightest middle point :)