It is like a messy background. You should get some structure in it. Maybe some flow going on from the radio to the other corners but not only by the yellow lines you added because they somehow do not fit with the other style of the tag. The colors are pretty okay, there is very much red in it. I only see a few problems with the tag. Where is the light coming from? The background looks too messy and at some parts too sharp, you get away from the render which should obviously be your focal point. Because of that you ruined the flow of ysour signature, now all is everywhere. And the lines kinda annoy me. They are too big and stuff. Try to fix up some few things, maybe even add a text.
