The beach chapter is the exact time the author took a break to "train" his artistry skills. The characters even allude to said "training" in the chapter by saying one of them trained too: Dude patted himself on the back in his own work. It's pretty clever. Pity it was wasted on an NTR chapter.Not just hand holding, but hand fondling?! In broad day light?! Too LEWD! Get a room, you two!
On a serious note though, something's changed in the wat the author draws her hairs. It makes her so much more pretty. So much more... Orihime-sama. It becomes apparent around the beach chapters, I think.