pg 1: Oversaturated. Haruka is supposed to be a brunette, not a redhead. Lower the black leveling a bit and if it still comes out too red-ish, use a Hue/Saturation layer.
pg 4: "Haruka." (last one) a bit up. Maybe "Haru-/ka." and size increase in both instances to make the emphasis more prominent.
pg 6: "Chihaya-chan." bit up.
pg 12: inconvinient -> inconvenient
pg 21: "Afterword" good bit right