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tbh...the text sucks. an easy way to make a simple but noticeable text is to choose a nice solid font, then duplicate it. change the under layer to black, (or the color of your choosing), blur it, duplicate that layer, then merge the three text layers down. it'll give your text a soft glow outline that will make it "pop", but isn't overwhelming the the sig itself.
there are easier and different ways to do it, but you're on a different program than myself, so all I can do is give you that bit...
sharpen the overall image.
use a C4D to spice up the image too.
try this one on for size.