Omfg, Canno's a mad genius. Hold on, I gotta go off for a hot minute.
https://dynasty-scans.com/chapters/an_easy_introduction_to_love_triangles_to_pass_the_exam_ch01#22
Top-left panel of this page. Mayuki and Akira are depicted above the knees so we can see their heights. Mayuki is self-conscious about her height, it being tied to her feelings of insecurity about her basketball skills and assumed immaturity. Akira is taller, being older, in the next "tier" of school, better at basketball, and "mature." These are all qualities Mayuki desires for herself so she can be an acceptable partner for Akira. I might be reading too much into this next point, but there's a little foreshadowing in their positions. Japanese text reads right-to-left so Mayuki is "in front of" Akira, even though Akira is assumed to be "better" in all respects. Akira is even patting her head like Makuki's a child. Through her actions and her speech, it's clear that Akira views her as a kouhai and not as a peer like Mayuki wants to be.
https://dynasty-scans.com/chapters/an_easy_introduction_to_love_triangles_to_pass_the_exam_ch07#19
Bottom-left panel. This is a two-page spread with the panel in question going across both. For pages up to the point, Akira has gone from in front of Mayuki, to stopping, to being surpassed by her. This progression is shown by looking at their feet. Reading from right-to-left, Akira is not only behind Mayuki, but on the previous page. She near the end of her page, stopped, while Mayuki is about to walk onto the next turn.
In chapter one, and up until this point, Akira has always viewed herself not only superior to Amyuki, but "out of her league." She viewed Mayuki as a child, maybe a protege, a cute friend who doesn't need to be taken seriously. It's in this moment where she realizes that she's been underestimating Mayuki. Mayuki is her romantic rival, in her eyes, and now must be taken seriously. But she's having doubts.
https://dynasty-scans.com/chapters/an_easy_introduction_to_love_triangles_to_pass_the_exam_ch07#24
Mayuki proves to be a better kisser than Akira. She's physically overwhelmed, but also emotionally, collapsing to the floor. The positions of the two have now switched from #22 of ch1. Akira is below Mayuki and on the left side. I think this might imply that it's her turn to develop. This is the start of her arc where she needs to realize what she wants and her place in the lives of Rin and Mayuki.
https://dynasty-scans.com/chapters/an_easy_introduction_to_love_triangles_to_pass_the_exam_ch07#26
Akira's perspective is solidified with her shock in this page and the final line: "she was supposed to be a mere 'junior'..."
I think Canno is an incredible writer and really knows how to use both text and visuals to convey the narrative. The symbolism here is really impressive and I just had to gush for a bit. When I got to that two-page spread, I was dumbstruck. It really shows what the comic medium is capable of in storytelling.