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The responsibility of Sophia is very well done. It's clear she has a lot on her shoulders and this raises the tension somewhat.
Why is she taking care of these kids? Is there a next-in-line hierarchy or something? Was there a caretaker before Sophia? Is Sophia okay?
This is from the post you commented on earlier. Here's some things I'd like to say.
(1): It's generally not a good idea to introduce all the characters and their profiles in a huge exposition dump. It's hard to read, and as you develop as a writer, it's a hard habit to shake off. Try to present them in more subtle ways, like the way they talk, their nervous habits, or some quirks, like you did for the triplets, Marcus, and Levi in the previous paragraphs. Keep in mind that with such a large cast of characters, it'll be harder to manage them all and give them all realistic backgrounds/personality traits etc. You've done a good job with the three characters I've mentioned though.
TL;DR, Maybe introduce the character slowly and gradually in a way that feels more natural.
(2): A minor nitpick, but usually when you're writing a novel or a chapter book, capitalizing is preferred.
(3): I used to have this problem too; when you're using quotation marks for dialogue, the format is: "(dialogue)". There are no spaces in front of the first word.
TL;DR, there aren't any spaces in between the first quotation marks and the first word.
(4): There are many grammatical errors. If you need any help, I'll be happy to provide it, but for now, I'll just leave you with this.
TL;DR, check your grammar in places. English is weird.
(5): Sophia seems to have an awful lot of responsibility for her age. This brings up the question: how long has this been going on? They can't stay in that hiding spot and subsist on moldy bread forever, right? How has Sophia been dealing with this huge burden psychologically?
TL;DR, It's amazing that you're dealing with topics like these, but they are a little heavy, so you might want to tread carefully.
This is such a cool concept! I'm a little harsh when it comes to peer reviews, so it might not come off that way, but this is truly an amazing first part. Sophia is characterized nicely, and even some of the children got their turn in the spotlight! I'm sure that with a few tweaks here and there, this could be absolutely phenomenal. If you disagree with any of the points I've made, or if you have some criticism about the peer review itself, I'll gladly listen! I'm sorry if I have offended you or sound conceited or arrogant. I'll keep tabs on this story, as I think it has great potential! I hope this helped you!