i know nothing about osomatsu san but i do know that i love lumi art!! so here's what i have to say: i'm really cheesed by the color progression of the sketches in this pdf... it makes me happy :D !!! there's something very sweet to me about unbashedly embracing fangirl culture and the earnest love of a media. very expressive arts!!! osomatsu san is very clearly part of lumi's dna and you can tell with how they're drawn. 10/10