This free sample is part of the huge pack down below, so if you like it, get the motherload here - 170 textures for $10:Vibrant Effect Textures MegaPack
Lowest resolution is 256px.
Highest resolution is 512px.
All textures are flat PNG with no transparency - white on black (I've designed them to be used as additives).
Have fun and drop a rating and a review if you appreciate this, feedback helps me bring you better content!