I like the first one better. It contrasts more sharply with the white paint and it matches beautifully with the fire. It gives off a more solid aura too. The second one looks too soft and non-armyish. Also one other suggestion. I see the shadow and everything, so I'm assuming youre using an advanced photo editor. I would suggest contouring the edges to give off a finer look and brightening the original photo. Just my opinion! But all in all, the sig looks great.