Well I don't particularly like this kind of style... But it is a great current signature. ;) I'd suggest adding more depth and color to it. Tan's and Light Blues.
I love the colors. A bit of blue might have looked good on the right though. Depth is missing, espcially with the black part of the scythe sticking out so much (might need some burning...!?!). Otherwise the style is OK (other ones by you are better though), I wish I could make tags like you.