my english is very bad
i'm from israel

Very nice sig mate.
As I can see, you're a beginner at the SA style, this one is really great for the first one.
Nice bg but it's too empty, try to add some cool elemnts to it.
The smudge or w/e it is on the render is really bad, improve it or delete it, add some lighting and light textures on the render.
The blue texture doesn't fit to the sig, try changing its color to yellow.
The text is very bed, choose other font delete the sub-text and the two lines, choose other font and put some nice light textures on the text.

Good luck

Very mixed feelings about this one mate.
I think the render owrk looks quite good actually, but then the text work really lets it down, needs a lot of work i think!
Background is kinda okay, but the colors aint fitting that well with the render, that got some mixed colors but still i think you could improve it mate!
Kiu!