The render at the left and the text at the right have crappy edges, which make the sig look messy. Make it smooth and it'll look nicer already. Personally i don't like how you did the border (emboss?)
cleaned it up a bit, and took off the tops of the buttoning.
// a little ooc to explain the image, because it tells a story. Meiun is an old KNF pilot who left the force and went Zoner after a few less-than-level encounters with less-than-wealthy sectors of the Kusari population.
He's been an ardent Zoner, but tends to throw around his wealth too frequently and in unneccessary amounts. He parties, womanizes, and flaunts what he can when he can.
Well, this life has caught up to him. He's been secluded for the past couple of years in an attempt to re-invent himself, to come to terms with his past, reconcile with his family, his heritage, and his future.
The signature shows the visage of Miyamoto Musashi (the eyes) to represent Kusari past. Forests/Trees from an old family painting represent his connection and turmoil over family name; his father was a very high ranking KNF pilot who wanted the same for his son. The kanji is Harmony, a coalescence of Meiun's adventures and solution to his future path. All these things weigh on Meiun in a detached manner as he contemplates them while smoking.