I'm not a huge fan of RPGmaker games but this one was really beautiful. I really enjoyed the art a lot. I think you had a really interesting story to tell too, the scene with the fish guy getting out of the water was really good.
Unfortunate that it's kinda only a big walking sim with basically only 1 target, nothing to solve inbetween or anything. Not really a lot interactivity besides looking at objects. Oh and the collision or grid was kinda weird, made it hard to navigate at some points. I think this could become a very good game if you allow us to interact more with this pretty interesting and good looking universe that you've created here.