this is the champion build on Gundam World Bandai Collection 2013 by shunneige in Japan. He made the stock nu gundam ver. ka looked like a baby .. the efforts and level of details on this kit is simply ridiculous and the overall outcome to be nature. definitely a master built.
here's a link to the builder's blog
http://shunneige.blog.fc2.com/blog-category-12.html
scroll down and enjoy ...