*sigh* I have failed to open the 2nd version of Aquae Arc I. Maybe it hates me ._.
So, anyway, abandoning my studies, here's my humble opinion!
I loooove the backgrounds of the beach, or any other that included the sea. If I starred at them long enough, as I did for Arc I long ago, they would appear as though the waves are moving. The music is also suitable. I would prefer if there was music for all the scenes, but you covered most of them, so that's fine. I like the way you told the story. Most VNs that I play will have some comedic moments, but this one has a calm feeling that has no need for that. Ah, but the twists didn't have much impact. I think it would be good to have something totally unexpected and groundbreaking.
There's a little typo (if I'm not mistaken, it should be 'explanation' instead of 'explaination') I only noticed that because it appeared in the KN a couple of times. Oh yeah, this is another Kinetic Novel I love~ There's definitely character development, and I'm sooo happy that my theory was right (Kaizarel's *cough* missing parent). Hurray for purple eyes! Plus, I always knew that Erika was suspicious! I have no idea if I had mentioned this earlier, perhaps on a separate post, but I love the Arc titles... (they make you anticipate what's on the next arc). Lastly, I love the art... I'm glad to see that you included the folds of the clothes... some wouldn't bother... and amethyst do suit
him well. *cough* I won't put this in spoiler tags, because I doubt anyone can figure out what crap I'm spouting if they haven't played.
So, anyways, good job~! I can't wait for Arc III! xD (But I will!)
EDIT : OHH... before I forget... will Amelia appear in the future? ._.