The best of your collection of:Kenpachi, Urahara, and Gin. Would be amazing if there was such thing as a combination of any of the three. (The only of the three I have is like one of Gin.)
The best Kenpachi I have also has Yachiru in it, so here are my favorite Gin & Urahara pics
I like this one because it's different
my favorite Urahara pic
and I'm throwing this one in because it's just plain cute