Your sig isn't using sig basics.
Obviously you are clearly trying for something different, but you still need to remember Focal point, flow, composition and depth.
The focal is hard to pick out because the text covers the whole sig, and therefore removes a clear focal. Remember (or google) the rule of thirds.
Example of a good Focal point. - notice where the main focal (face) is laced in the sig.
The flow is not terrible, but the text really ruins it. Remember that text needs to follow the flow just as a render or stock does.
Example of good flow. - all the effects flow in the same direction.
Composition in text sigs are hard. Try looking up some general typography tutorials (photoshop/gimp ones should be fine) to see how things are placed.
Example of good composition - Everything on the sig draws your eyes to the focal point, which is cleverly placed using the rule of thirds.
Depth. At the moment, it all looks very flat. Try making some of the wavy bit infront the text. Blur some background - some decent lighting always works well for me.
Example of good depth. - it looks very 3D, you can easily tell where the foreground, background and main areas all meet, yet are not flat.
[all sigs where made by me using paint.net, no ripping, thanks]