We have a thread stickied at the top of the forum for testing. There's also a sig "how-to" and FAQ up there that you might find helpful.
As Seagoat already mentioned, there is a stickied thread for just this kind of testing. I do notice you've posted there already, so I'm going to close this thread. I will leave the other one open since you are asking for opinions on your current and a new signature image. Also, your current signature is missing a closing " in it that's keeping the image from showing up. Adding the missing quote mark after .jpg should fix things.
