Get the scanlines off the focal and lower the opacity. Infact, take them off unless you're sure on how to use them.
The background it bad and doesn't match the render. No blending is attempted.
The low opacity guy on the right it terrible and steals attention from the main focus of the sig.
Text is generally bad in sigs and I try to avoid placing it. But, if you must, I suggest
No depth, lighting, or flow.
If you want to become a better sig maker, check out the GFX Megathread and look at the links. Read through the tutorials and learn about how to become a good GFX artist.