I was surprised to see such a "hard" game in the competition! I'm a big fan of difficulty in videogames, I always like a challenge, and most developers are afraid of rejection towards their game if it becomes too hard, so props for delving into that!
The game was vibrant all the way through, very consistent art style, and magnificent level design. I played Kirby Canvas Curse when I was younger, and I've seen Celeste multiple times, so I was familiar with the concepts. The autoscroller towards the end was tough but fair, it's by far my favourite level.
My pet peeve for this game is the wall-jumping. My instinct was to press the directional key away from the wall before jumping, but that made the character un-cling a bit too fast for my taste, which resulted in me plummetting to my death several times. I also thought it was a bit inconsistent to grab a ledge and jump upwards instead of away from the wall. There was several instances where I wanted to do one thing and ended up doing the other one, once again resulting in gruesome deaths.
Other than that, I had a lot of fun playing. Every level was thought out, and I had to switch from good platforming to good "ink" management, to both at once. Other people have said this as well, but this feels like a finished game too, not just a vertical slice. Congratulations!