I know where you're coming from, as I usually prefer bigger images as well. But I believe the smaller pic suits this page better, as the white space around the character scales her down just enough to look better alongside the other characters. Changing it back for now... but feel free to discuss!
Yeah, that's why I wanted to notify/run it through you guys; I did feel the lower-quality pic had more white space consistent with the other pics... horizontally. Vertically, Finchen looks worse here. I don't know.