Viability - looking good so far! I like the animal characters a lot, and I appreciate the inclusion of chapters. I think making it so you can get back to the raccoon with the branch without having to go through the text of meeting the raccoon again would be great if that works.
Presentation - There's an issue with the way the text is laid out where it continues off the side of the screen – I think using percents for the size of the game should solve that, but take that with a huge grain of salt, I'm new to this lol. I'd also recommend changing the color of links that have already been visited since they start to blend into the background as they are. Also, a couple error messages about your else statements popped up while I was playtesting, so make sure to check those out.
Theme - I really like the colors and the font you chose, and the storyline is clear.
Engagement - I was totally engaged! Like I mentioned before, I like the characters. I'm really interested to see where the story goes!