Second one. First one doesn't have enough contrast and the flame on the third is at odds with the harshness of the rest of the sig. If you took that flame layer and vectored it, maybe using it as a clipping mask for that starscape with a lower opacity, I'd definitely like it a lot more. Don't get me wrong though, I'm totally digging the overall aesthetic.
they all have the same amount of contrast, the ones proceeding the first have exposure and hue/saturation filters applied. thanks for the tips.
