i recognize the first panel is a pose imitation of Felix Argyle from Re:Zero Kara Hajimeru Isekai Seikatsu, Shiota Nagisa from Ansatsu Kyoushitsu and Hastur (Nyaruko-San) from Haiyore! Nyaruko-San. the other might be from saint seiya but idk.

i have absolutely no idea who these characters are. god help me.