Hey!
I played this several times, but only managed to get to the second and third ending :(, so no happy endings for me.
Overall, I liked it. The character's art is very gorgeous and unique. The CG doesn't really blend well ith it, but it isn't too bad either. The major problem was the music. Sometimes it was very... anticlimatic. Also, the transitions were very abrupt. Visually, it was ok, but there were times when the music simply stopped, and in which some fade out would've helped.
All in all, it was great! If I could get a spoil on how to get the first (and the last, I presume?) ending, I'd like to check it out. Congrats for the entry and good luck!