The feet part gave me serotonin thank you. This was very good and heartwarming! I'm happy that there's a good ending with Henry. Also this feels extremely complete already which is cool, you can spend the last week making it even better.
The reveal at the end that it's Victor telling Justine everything that happened makes sense, until you think from the beginning. The entire exposition dump there wouldn't make any sense if it's Victor telling his sister about stuff that she already knows, unless I'm reading it wrong? Either way, I felt like there was a lot of explained exposition right away that was too much and was hard to keep up with a little bit. You could instead think about opening at the mom's death and then through that show Victor's relationships with others, in order to minimize the amount of actual flat explaining that will have to be done (just a random thought you don't have to implement by any means!) This would also make sense with the whole explaining to Justine part, since you could say the mom's death is where it all started for Victor and his creation of the monster, something that she wouldn't know I think?
Overall, it was really good! Great writing, incredibly heartwarming and wholesome content, which is interesting for a story as horrific and iconic as Frankenstein. I liked the pacing a lot and the way it's formatted. The stylesheet is also verryyyy cool and fitting