I like the effect you've applied to the picture. Makes it more like an illustration. And while it's very dark overall, I like the subtlety of it. Nice work!
Peter, I had to see it on my desktop before I could say - WOW - this is interesting, unique and well done! I can see all kinds of things in here -thanks for sharing it! - Patty
Interesting texture, but I imagine this is too dark for many people to be able to see it properly, or at all... remember everyone has different brightness settings on their monitors so some people probably see nothing but a black screen. Personally I would suggest lightening it but it's up to you of course.