Definitely improving, but theres too much going on.
The brushes colors "clash" (aka don't blend at all) and kinda ruins the sig, I suggest removing some of them and changing them into purple or another color.
Render isn't blended enough, add some clipping masks into it, depth could be better, blur some parts of the C4D's in front (the black, blue and orange one) and add some darkening on the sig, so it has better depth.