If bbkbrnk.com is the official website for "Bubuki Buranki" then there is a smaller version of the picture on the character page at: http://bbkbrnk.com/character/
(http://bbkbrnk.com/img/character/01/character_01_05_all_front.png for the image)
Also the full image from where this was taken can be found at:
http://cdn2.natalie.mu/media/comic/1512/1230/gazou/bubuki/extra/news_xlarge_bubukishizuru.jpg
But there was a lot of empty white space in that one that I cropped out.