Only thing Id really add that I think it important is work with the forum background as a bottom layer, you can turn it off when you save the final product but it will help you to accomplish the look you want as if you make it on a transparent background you may be in for a shock at how much it changes especially if you are messing with transparencies.
"If you get hit and it hurts hit him back you not knocked out yet."-Joe Doerksen
The Toxic Terrors (FFL)
Demetrious Johnson*Eduardo Dantas*Rafael Silva*Zach Makovsky*Michael Page