That image closely resembles two images: the Disgaea 3 DLC wallpaper which features every DLC character and the Disgaea 2 chibi art which was also used for the phone charms.
Though the artwork in that link closely resembles the style Harada used in the artwork I posted, there's no evidence that tinierme plagiarized Harada. Not one of NIS' or Harada's characters are shown there and you can't really claim plagiarism when only the style or layout of the artwork matches another. I've seen SNK and Capcom do it to each other and nothing happened.
no subject
http://img695.imageshack.us/img695/3673/cl123332756850tb6.jpg
http://img15.imageshack.us/img15/9312/walkp.jpg
Though the artwork in that link closely resembles the style Harada used in the artwork I posted, there's no evidence that tinierme plagiarized Harada. Not one of NIS' or Harada's characters are shown there and you can't really claim plagiarism when only the style or layout of the artwork matches another. I've seen SNK and Capcom do it to each other and nothing happened.