So, just finished this. Good stuff! Nice art. I mean... bewbs, am I right?
If it were to be perfectly suited to my taste... there would be one-off opportunities with other females, more sex overall, and the combat and quests would be a little more varied. Puzzle quests, mystery quests, maze quests... mix it up a bit. Also, I would do away with the little quests, like picking flowers and playing hide & seek. But that's just me. The final sequence of quests, where you had to find all the musical instruments and learn the song and all that, that kind of thing is great. More of that.
Also... and I know I'm whining here, honestly I like the game a lot... the combat got crazy easy at the end. The big final Eureka Guardian dude was tough, of course, but after about 35 or so quests, my MC was killing almost everything with one hit. He had a bad-ass Great Sword and a move called "Scattered Petals" that was regularly dealing out 10,000+ point of damage. I stopped even worrying about equipping the party with healing potions and balms and stuff. Never used them. MC killed everything, often before the foes had a chance to attack.
But those, seriously, are quibbles. Overall this was great. Sexy chicks, fun adventure. Will now seek out Dev's other games...