It's pretty cool, but I think the yellow is a too bright of a color to use. Or at least, I think the brightness you used was too bright for the picture. The yellow also takes away the lightning, so it's harder to see in the upper half of the picture. I'm thinking maybe in your reversed where the colors were it would be a little better.
I dislike the yellow and (because of?) how little the stock stands out in the top portion. It looks extremely flat compared to the bottom and that doesn't please me. The text is too bright and needs a darker color and/or lowered opacity; it isn't blending. What does it say?
I'm not really a big fan of this one, could be because the yellow and the shade it looks to me. The stock is good though and the texture you used is really nice. Not sure about the text, it could be that I just don't like it there or I think it should be somewhere else. Looks like it says 'Nulla e reale tutto e lecito. Requiescat in pace.' Not sure, it's a bit hard to read, but the font fits well. It's not bad, the colors could be just a little different, honestly, that's the only real fault I see.
Hmm, this is indeed interesting and very visually appealing. I like how rugged and tainted the stock is, it gives it more of a stealth-like feel... The progression of grey to yellow in the picture is really interesting and I really like it. The cracks in the background brings action in the simplicity of the picture and also compliments the texture of the stock. This was a simply marvelous piece, it was delightful to critique it. Great Job!