First, Sig size is important, I tend to use 400 x 125 or 380 x 120
Second, to spice up your signature you should download a few c4ds and a few brushes.
Third, You always need a border. Heres a simple way of adding a border. Make a new layer on top of your previous layers and press ctrl + a. Click edit stroke, and click in "inside" and pic how many pixels you want the border to be and what color.
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