I'm working on a signature but I'm quite new at it. Four thousand characters isn't much to work with! So far I've got this but it's 10X the allowable size:
I know you're a professional designer, so I don't have anything to comment here. My first impression of your design is its sharpness. The image is made so clear that it's easy to see why it's 10 times larger. You have a great contribution!
There were too many to choose from, feel free to remind me of anything I may have left out.
Maybe you forgot to remind us that the avatar you are wearing should be worn with the signature that xhomerx10 is designing.