if you want some good cnc
imo the background looks low quality, you should blur it more so the lowquality isn't distracting and you will also create a better focal point.
The text is way off the focal (place it closer to the render) placing your text away from the focal forces the person to look at different spots while its better to have the focus on one point (thats why its called focal xD)
also i would personally like it if you used the brightcolors in the background on your c4ds because the c4ds are very dark colored and i think some brighter ones with different patterns would blend in well.
also if you used bevel and embross on the text "cold" don't do this, it makes the text 3D which doesnt work on signatures if you don't know how to work with the settings.
still a cool sig overall, maybe a black stroke to finish it off? D: