To start off, your render:
I don't think that is a good render for a signature. When render-searching, it needs to be decent-looking. This doesn't mean that it has to be something kiddish, it just needs to look clean. Look at other peoples signatures that are smiled upon, and you can see what I mean by 'clean'.
Secondly, your background:
When we say 'blend your render into the background', it doesn't necessarily mean to find/make a background, and make the two items nearly the same color. What we mean is - in usual blending, people use the smudge tool with settings they've fiddled with, and brushed around the render, that led to the background.
For example, I could have a plain that's colored sky-blue render with a dark-blue background. I can use the smudge tool with a certain setting, and brush around it, and it will lead into the background.
If you're still unsure about this, look for tutorials on blending.
Thirdly, your text:
Even if that text on your sig was for copyrights, you need to work on your text. To make the right text to fit with your signature varies with all signatures. It doesn't always mean to just stuff text in any corner of your sig.
It may seem weird to beginners, but plain text is better than some fancy, curvy letters.
Take XSafires signature for example - (If I can use you for an example):
His current signatures text isn't big, and it doesn't pop in your face when you first see the signature.
Lastly, regular signatures are usually 300 X 120. Try that.
I hope this has helped. I'd like to see some improvement next time.
