Wow, lot's going on in this signature. I feel that the stream of lights behind him, the weird rainbow box to the bottom left, and the length of the signature are seriously interfering here. Because his body is a little darker than the light stream behind him, it takes the focus away. I'd use different colours for the light stream, erase that rainbow box, and cut down on the horizontal length. It's just too busy. I do like that you took a step out there and made something unique though.
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