Wait, this was a class assignment? Damn, I wish I'd had assignments like this when I'd been at school.
You have all the time in the world to fix things, of course, and at least you submitted it in time. I think the only problem I had when it came to reading was the passages where we end up being eaten, because the text colour over the background colour made it harder to read. And the text was kind of small. But they're all easily fixable.
I also keep forgetting that while I'm unemployed and job-hunting, I have the time to work on this stuff, and it's all for fun, for me. There are books on Twine if you're interested in learning more. My personal favourite is 'Writing Interactive Fiction with Twine' by Melissa Ford. It teaches you how to make things using both Harlowe and Sugarcube story formats, and it's incredibly comprehensive. It also teaches about how to craft stories along the way. It was incredibly easy to follow. I took many notes from it. So yeah; if you can get hold of an ebook version of it, or a hard copy, you'll find it very useful. Of course, the documentation online is free, and the Twine subreddit is full of knowledgeable people. But then you might not play with Twine again. It's up to you. I hope doing a rush job for class won't put you off the program, or game jams in general.