It's not the worst, nor the best I've seen. You should have came on a little less strong with the color effects. If they're strengthened to the max, they can't seem to really fit a signature. You used a vivid smudging/blurring technique. If you smudge, only smudge one way to create flow. You should experiment with more effects. Not only c4ds, because c4d whoring can be typically awful. You should definitely try bringing in brushes, and leaving the background alone. If you need to blur to create depth, you can do so. But, staying simplistic can always make the best sigs.