Okay i will tell you this.
You need to work on composition and an overall atmosphere when working on signatures. Not just randomly placing a c4d somewhere. Also when working on your focal ( The main idea of the signature ), try not to sharpen that area, and blur the rest and then sharpen another area that has nothing to do with the focal. It ruins it.
Lastly, you need to work on flow, randomly placing C4D's in Lighten blending mode does not help that at all. If you are going to use c4ds, try creating a flow of direction for the viewer to follow it towards the focal. It makes it much more appeasing to the eye.