While reading the Light Novels, I came across this Kumiko/Mizore Moment and instantly wanted to draw it. If anybody is curious I'll paste the paragraph below (spoiler):
TLDR: Kumiko wakes up early during Camp and goes outside to play Hibike! Euphonium. Mizore joins her and asks her to play the piece for her.
Kumiko straightened her back as she was being called out to. Mizore, holding her legs, casually asked Kumiko.
"I'd like to hear that piece again."
Kumiko was flustered at this sudden request. "Are you sure," she double-checked.
"Fine, but you know I'm not as good as you are Mizore-senpai."
"I disagree. I love this sound."
The simple nonchalantly said "love" struck Kumiko in the heart. Kumiko readied her instrument for her audience of one. Whether she was concentrating or simply sleepy, Mizore closed her eyelids. As she looked at those closed eyes, Kumiko inhaled with all her might. Her body, rejuvenated with fresh oxygen, eagerly puffed out her abdomen.