Program required: Phptoshop
(The tut works in a very similar way on GIMP)
1) First of all, you need your sig to be ready, and when I say ready, I mean that it must be just 1 layer, You can always create a new layer and then go Image/ Apply and set it as "Normal"
Here is the sig, Do you recognise him? Apocalypse, enemy of the X-MEN >:3
I don't know you guys, but I think that this Evil Looking guy, needs a pair of Evil Looking eyes
NOTE: I sugest you to add text and border at the end
2) Now go Filter/ Render/ Lens Flare, select
105mm Prime and put the light on one of the eyes, adjust the sise at your preference and hit Okay, repeat the process with the other eye
3) Now duplicate the Layer and name it "Glow", now in the Glow layer go, Image, Adjustments/ Color Balance
4) Select "Midtones" and set the valours to this (aprox)
5) Select "Highlights" and set the valours to this (aprox)
6) Select "Shadows" and set the valours to this (aprox)
7) Now select the eraser tool and set the values to this (Make sure to select a brush with feather edges)
8) Simple, erase what you don't want from the Glow layer, adjust the sises of the brush to erase espesific parts around the eyes, until you get something like this:
9) Now add border, text or wathever else you want and ta, da! Your evil looking villan has now a pair of evil looking eyes >:3