Got here late, but I'm still here!
Glad to see Sanghyun's getting over his hangup as Yoil. Well, we've been building up to it, of course, but it's nice to see him gain confidence on himself (specifically on his "self", as this entire arc was how being self-conscious about Yoil's appearance/presentation was causing him to overreact—at least, that's how it felt like to me) and I hope that some of that leaks back to his male persona in some fashion, too.
Interesting note with how miscommunication seems to be recurring theme for this arc, too. Their vocal coach, Mooyoung, the producer that kickstarted it all. "Never being able to convey your message correctly" ties them all together in some way. Fascinating how that also compares with Iruha's arc—the juxtaposition of your public face and your inner face. The persona and the shadow, if I'm recalling Jungian psychology right. Extra fascinating how it all ties back to Sanghyun. I wonder how intentional the analogies are here?