Sig looks good. Colouring works well, blending is decent and overall composition is neat and tidy. Nice work Jay.
My best advice for improving is to change styles and experiment with different things. Don't fall into that habit of using certain styles (this one in particular) over and over. I've lost count of the amount of sigs I've seen in this exact style (similar colouring, font, composition, and with 90% of them being Jeff Hardy/Miz sigs) over the past couple of years.