I looked at your account and you don't have anything in your signature block that would indicate you have a picture loaded. Indeed what I see in your signature block on posts is what is in your profile:
When I go to edit my signature, it shows the picture, but does not show it in the signature block, so something is not loading it into the signature block. The picture is uploaded...ok we found that little very small line that says insert picture...heheheh Sorry...!!!