I love the way Tottonero draws faces from the side, the slightly open puckered lips and tongue poking out for a lusty lick is perfect. They're plainly drawn in a similar fashion to Wagashi's profile shots, but that simplicity is so appealing.
P.s. might be worth adding Tottonero's earlier Lillie drawing of her kissing Oji-san to the gallery. https://www.pixiv.net/en/artworks/104004063