http://vatoto.com/comic/_/comics/hidamari-sketch-anthology-comic-r14805
Sorry, I managed to screw up the order! It's an anthology so it doesn't actually have chapter numbers, but I'd still like them to be in the same order as they're in the physical volume. Currently the actual chapters are like they should be, but the extra material (Color illustrations, Author comments) messes up the order. The order should be Color Illustrations ("Ch.0") -> Manga ("Ch.1-11") -> Author Comments ("Ch.12"). Also, while you're reading it, chapters 0, 1 and 12 all lead into chapter 2.
I'll try to be more careful in the future. Thank you!