First, get rid of that goku, its not doing anything at the moment but ruin the composition, secondly, choose a new font, something that blends nicely with the rest of the image, download as many as you can and see what fits best. I think that animation could work if that goku wasnt sticking out like a sore thumb, but thats only a maybe, either slow it down or have it at a lower opacity, also vary the amount of darkness in the brushing, at the moment there is just mid tones, vary the darkness so peoples eyes have something they should focus on, it should direct your eye where you want the attention to go, which is mainly from top left to bottom right with most sigs. I hate to say it, but it might be best to take doodoo's advice and redo it. Hopefully ive helped >_>