WOW!:hpraiseThat is, without a doubt, your best piece of work; by a mile. The render effects are splendid and the text is perfect for the sig. You could move the text a little towards the top though, and about a few mm to the right (sorry for being so picky but it would really define perfection if you did it). And I feel you should've put the gray splodges behind the render. In addition, you could have made the logo smaller and placed it in the top-right corner. That said, it's still your best piece of work, by far. Keep it up!