The images in panel 2 come from Vol. 12 (post #5089397) and Vol. 45 (post #5504695) of the comic. It took some time to find an interpretation of some of the phrases that made sense.
What's that?!
What's it like between you two?!!?????
How about all these pictures I've taken before?Isn't that a bit fast!?Sousai Shoujo Teien Activity DiarySo you can see it now too, Saeki-san?Madoka-chan of the Lightning Fast Smartphone
"スマホ" (sumaho) seems to be the contraction for smartphone.smartphoneEh?
What was that just now?Hmm? I was curious, so I took a picture, okay?I...
I didn't know about those...Sometimes Koyomi-chan stops me from doing it~Me trying to take pictures and Koyomi-chan trying to stop me...It's always a serious lightning-fast match...It's like a sword-drawing technique!!