thanks everyone!

And white rabbit, I think those suggestions are quite helpfull.
Let's see if I can do something with it...

ps; I allready thought about woodflakes, but I didn't add them, because I couldn't make them But I'll try again...

Just one final question;

My JazzBlue isn't blue enough. It doesn't appear as a transparant tile. Only the left corner above is working fine. How can I fix this problem?