I just finished reading all the chapters out in the comic so far. I like how the journal set up lets the reader guess about aspects of Coco's life with subtext based on her behaviors and ramblings without it being stated literally. One thing I was interested in pondering was if the dream world is actually a literal real place or it's all in Coco's head to deal with her current issues in life. One thing I noticed was that she didn't fully remember a promise she made to the ant queens, which was coincidentally also the one thing that was not recorded by the Lorekeepers. So I did wonder if the Lorekeeper records correlate to her actual memories. Other aspects of the dream world also open up for speculation of whether they correlate with something in Coco's life. The addition of the new character helping with the journal also helps keep things fresh and varies the voices.
You put a lot of attention to detail to make the journal pages feel like a real journal from a teenage girl, adding elements that would intrigue the reader and guess at her current mood. The drawings are charming, and Coco character writing is pretty strong, she has her own interests, hobbies, and flaws. There is some mystery in the worldbuilding of the dream world and it is fun to speculate on how certain elements connect with Coco's life.
Other people have mentioned the Yu'Chri sections lacking any visuals, so I'll focus on other things. I feel like the tuber incident only being just a short episode from Yu'Chri a little puzzling. The dream world is meant to have some kind of parallel with Coco's life, but this incident is just mentioned once, and we don't get Coco's perspective on this. I'm also not sure how I should connect this incident with Coco's life, as I rechecked the chapters before and after and I don't really see mentions of hot weather or potatoes.
Another thing is that the dream world moves 3 times faster than the real world, and currently there are a lot of parts for the Monday section but no Yu'chri section. By the time Auntie picks up Coco (which is end of school day), I would assume at least 1 day, maybe 2, have passed in that world. The ant conflict is being made out to be a big deal that would disrupt the economy and rumors are already spreading, so I would've assumed that we would get some kind of status update from Yu'chri.
I'm not sure if this is the case of that the dream world truly is all in Coco's head - so the world, even if time physically passes there, is basically in a state of stasis until she subconsciously decides something happens. But if your intention is that the dream world is real, then I would've assumed that we would be keeping track of the daily events within the dream world especially since it seems like the citizens there are currently in a tense situation.
To be honest, even if it is the former situation, where the dream world is just in Coco's head, there are incidents in the beginning that happened while Coco is not there, such as Yu'chri accidentally sending the invitations to the ant queens. So I think in general the faster passage of time in the dream world should be utilized more to raise the stakes a little more.
The last thing is just a super minor nitpick. But I noticed that the fonts you use for Coco's journalling have inconsistencies with how the capital G is written. In some cases, the G uses a full horizontal line, while sometimes it only has a half horizontal. The commonly used font in the journal (first image) also has full horizontal and a vertical line, which differs from the way the G is written in the other two pictures. Now speaking from personal experience and some vague memories of learning about forensic handwriting analysis I learned from class, people don't usually vary the formation of their letters by a lot unless they are deliberately trying to. I assume Coco is not doing that, so we should probably have her letters stay consistent. Like I said, you put a lot of attention to detail with adding blood stains, tear stains, and even a squished ant to her journal pages, so I think it's worth the extra effort to use fonts that have consistent letter formations.



Anyways I think this is a pretty good start to your story and it looks like you have a strong direction of where you want your story to go based on how we see hints set up in the beginning to pay off later.
Here is my comic for review~ I've been working on this for a while so it is a bit long I think.