First and foremost, you need to get a real stock or render for your sig, not something you cutout from Amuria's painting.
I'm guessing you got the render from
here. That is a digital painting by Amuria, not a resource to use elsewhere. Right now you are grounds for ripping her painting, which is a copyrighted work of art.
Unless you have specific permission from the artist or it is released as a stock resource, then you might want to remove that signature from your current at RSBandB. We take graphics pretty serious here. Just in case you want to know, all of deviantArt's free resources are found
here.
Anyways, pretty good work on the sig. The backround and color scheme fits well. The blending of the render and typography could be better though.