The last post (it's public, so I think I can share it here as well ^^) by the dev on Patreon
"I'm excited to share the progress made in enhancing the game's graphics! In the images attached to this post, you can see how the scenes appeared before and how they look now. The story of the game does not change in any way. There are still a lot of visual improvements ahead for the first scenes of the game, but I hope this post gives you a glimpse of the direction the graphics will take in future updates....."
Here are 2 pics (there are some more on Patreon) showing the differences between "before" and "now"
My 2 cents: I had no probs with the original art style, but I like where the dev is going