Ok, I think this looks better. Let me know what you guys think.
Not sure if you are just wanting to know about the flash or the scene in general. If just the flash then I think it looks decent maybe a little more hotness towards the barrel opening. But as a scene using a muzzle flash I would add some light kickback onto the shooters face hands and bit of the forearms, and possibly light up other areas that may be affected for that flash period by the light as well.