When i look at the stock i think you blurred the background to much. You want to Blur the farthest away thing the most, and leave the things closer to the front sharper. Think of your sig as looking in a window. The things far away, and darker and harder to see. The things in the front of the window looks sharp, clearer, and lighter.

The smudge you did is pretty nice, i see what you were going for. I would suggest some clipping masks, i think they would suit this really well.

Work with the texts blending options. Lower its opacity or change it to overlay or softlight.

Overall its a very clean sig, but you need to keep working on it.