No Pixiv, apparently, and they've deleted most of what used to be on their blog. Thanks to the Internet Archive, though, I've manged to locate a small selection of images (see below). And there's a list of works here.
I hope I find more from this artist in the future. Matsuda Shima's artist is gorgeous. I was captivated by the presentation of Azusa on the first page of K-ON! Anthology Comic ch11: Azusa's "I'll do it by myself!".
