Text - Change. Lighting - Quite pertyyy. C4D effects - NICE. Repeating images on two corners - It kinda contrasts from the theme of the sig, based on the style you chose.
Whats does 'grind' have to do with a car? As for the image it looks pretty sick. Nice blurring effects and lighting effects. Not really digging the little things in the corners.
You do realize that the border is uneven on each side right? Anyway, I think you would have been better off without the clipping masks and the text. Really cool effects you used though, you are getting good at that.