Good work, I like this signature style, I mean it's soft and smooth but you still need to work on these things *_*
- the shadow border made the signature's smooth life unbalance, maybe there is no need for a border, or just a plain dotted/lined black border will do ^^
- the background and the aspects and resources used don't flow/balance together which occurs to make a mess of your sig, Try to keep the balance of the background and the resources/aspects used to flow together to keep the attraction of people
I hope you improve lots more, so keep it up! *_*