Go Fujimoto is an absolutely incredible Japanese “bara” or bear illustrator. Big dudes, cute faces, and even his quickly-coloured pencil sketches (as above) look incredible. I’d recommend tracking down as much of his work as you might be able to, he’s really quite talented.
You can find Go Fujimoto online at his blog (Japanese Language Only, sorry!) http://japanimationbears.ti-da.net/, or at his online store Bear Grand, http://www7b.biglobe.ne.jp/~japanimationbears/BG/BGtop_E.html.