>>2014304They actually aren't animes at all, but games on the PS3. I adored Totori, played it through two or three times. He worked on Atelier Meruru too, but I still have not beaten that game. It's fun and all, but so many other games came out right after it too...
As for animes he's done work for, he's been involved in 'Sound of the Sky,' 'Hanasaku Iroha', and 'RDG Red Data Girl'. Sound of the Sky does get ramp up and get more serious toward the end, but I don't remember the plot being quite as good as HMP. Hanasaku Iroha is completely dissimilar as it could be described as a slice-of-life romantic comedy.
RDG Red Data Girl looks like it might be cool, but it just started airing in Japan so I've not seen it.