This game feels very original, both visually and story. The first thing that caught my attention was artstyle inside of the cave. It isn't just "a cave" - there are cave paintings.
One thing I noticed was that the thunderstorm at the beginning seemed to stop pretty fast. I'm not sure if that was intentional or just something related to the web version.
The portals confused me a bit. I tried going back through one of them, but it sent me back to the start of the level, and then eventually all the way back to the beginning of the game.
I also liked the overall presentation. Even small details, like the menu buttons, were charming. The game reminded me a bit of Lisa: The Painful and Heartbound
One suggestion for next time would be to include a downloadable version as well. I don't know if it is intended or not, but the game feels supper choppy and laggy, like a slideshow or powerpoint presentation