ハイジャンパー特有のスラッとしたカンジを描きたくて、あえて跳んでいるトコロでなく成功シーン。
スレンダーなスタイルが魅力だと思う。

I drew a high jumper (who tend to give off a particularly slim feeling). By the way this is a scene of her after succeeding, not of her currently jumping. I think the slender style has a certain charm.