Is this a sample of a work in progress? Does this mean he is not doing another Akiko doujin this time?

I hope he keeps on doing Akiko doujins, I especially love the threesomes he does with Akiko and Nayuki. I would like him to do the same with his so far one off To Heart 2 doujin, a threesome with Haruka and Konomi.

From the look of things, another Akiko doujin is on the way since the cover of volume 8 is shown in one of his latest illustrations.

And looking at this drawing I'd say he improved tremendously in the last few years.