Focus on the art
For me, I think that there is too much focus on the signature here. No-one ever went to an Art Gallery to look at someone's image of their name. Sure, it is an integral part of the piece, but it takes up far too much space here. Spend time with your art programs and develop a sort of signature that remains constant through your works, as opposed to the name remaining, but in vastly different styles across the range of pieces.
I don't believe that you did it in Photoshop, more like Apophysis, which is a fractal generation program. I say this, because it looks remarkably like the style of some of the works that have been made by her using that program. Yes, I can appreciate that you've added your name afterwards and tidied the piece up, but it needs to be credited if that was so.
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