Quick character design just to make sure I still can haha. You can get a free sketch if you can name the guy this one's looks are based off of. Ofcourse it might be difficult because this is a sketchy sketch (just look at those sloppy tats XD)
As a short bio, his current name is Reuben Rockwell (he has changed it several times) and once upon a time he was the second captain of Division 13, Ukitake's predecessor. During the first quincy war he attempted to make himself more powerful to defend SS, ended up turning himself into a hollow, and had his ass kicked by his daughter. His wife was killed in the war and he was exiled. His daughter remained in SS and would be the captain of division 13 if some other stuff hadn't gone down with her.
Reuben spent his exile time traveling everywhere in the gigai a friend smuggled to him. He was stuck in the human world for several hundred years, but made the most of his time, often traveling as a sailor on cargo ships. He eventually got himself into tattooing, having been a pretty good painter (a hobby from SS). He ends up tattooing his own gigai, and himself to match, and gets a new one for each country he travels to (and some just because he can). Though he missed his daughter, he really enjoyed his 'human' life, and didn't mind that his spiritual pressure was slowly getting sucked away by the gigai.
In the current AU storyline, Reuben is the owner of his own tattoo shop, and had been for about five years when the SS approaches him and asks him to return to help in the shadow war. Unfortunately, his abilities had been greatly diminished after spending so much time in the world of the living, and his recovery keeps him from fulling going into active duty. Between training to get his powers back, Reuben opens another shop in the Gotei to keep himself from getting too bored, and reunites with his daughter, who had also become a visored (many years after his own visored incident)
Though he's still recovering, Reuben was always known for having the best control over his spiritual pressure, and can control it as easily as breathing. His other skills are well-rounded, though he prefers kido and zanjutsu over using his shikai or bankai. Currently he is still considered 'retired', though he is slotted to take a captain spot in any squad except the 4th and 5th in case one of the other captains is killed.
aaaand yeah, hope you like him haha