Holy crap, Eiki looks tiny here. Watch her, Komachi! If she falls in she'll drown.

good god, is this perspective fail or does the artist honestly think Shikieiki is that small?

Sikieiki is leaning slightly, and Komachi is standing on a seat rather than the bottom of the boat (going by her standard dress length).

With these proportions, Siki would probably come up to Komachi's shoulder if they were standing on even ground.