Nice start, you may be overthinking the flash a bit, you really don’t need so many quads, and oftentimes focusing on the shape and color of a larger, single camera aligned quad is 80% of a nice muzzle flash.
Even most very realistic games typically lean towards a single detailed flip book or texture for the main flame. The supplemental flames around it can help, but Ashif is right about focusing on the “core”. Focusing more on the color gradient in particular will make it look nicer.
