I feel rarely compelled to reply to most sigs, but this one I like. I think its probably your best that I have seen since joining this forum. It has a good tone and balance with the overall color and finish - smooth.
I am not so sure about the dots, they're a good touch but a little too many of them I think, althou they're something I could grow to like rather than get annoyed with over time - if that makes sense, more of a preference than anything wrong with that.
My only criticism, is in the text-font. With such a good sig, I feel its let down by the generally normal and simple text you've used. Don't take this as a bad thing, my point is that, you tend to use very normal text-fonts and styles all the time - I've seen your point before regarding using the defaults but honestly, text and fonts are part of the design too. You're not including this aspect as part of that process as much as I think you can, experimenting and developing it enough to compliment your increasing skills. Don't get me wrong, I see the advantage in keeping it simple, but all the time can get boring - you are better than average, much better and that one small feature I think you could impress many with.