Saying that the art direction was good would be just reductive after what I experienced.
The abstract nature of the world around the protagonist was very well made, and there were points where I stared at the screen speechless at how gorgeous the visuals were.
Each area had its own charm, and out of the details that characterized those, my favorite was the eye of the sea creature underneath the protagonist.
The one in the area with the crabs.
At first, I didn't even notice it was an eye until I saw it getting closed in real time.
I liked how that area was so full of life and full of stuff like that.
That said, I was really confused for most of my experience while trying to understand the story.
The metaphorical narrative of the game definitely fit well with its abstract visuals, but I was like "What is this supposed to mean?" constantly.
My instinct tells me that all of this was related to a past trauma of the protagonist, but I don't think that I could be more specific than that if I had to explain what I understood about it.
PS. I noticed two oddities while playing. First, the description of the Blue Shade is wrong. It says that the Blue Jellyfishes are near the Blue Crab, but they're actually near the green one.
Second, the LEFT and RIGHT controls were inverted during the first area of the game.
This happened anytime the screen would fade to black, and when the screen faded to black, the controls would return to normal.
This happened several times until I ended up in the next area.