I have sketches for a comic book of 20 pages! comic book about everyday life, but with the main character - succubus I did it for a contest, but for some reasons I refused to participate in it, although the sketches of all pages are ready! I think, maybe it should try to sell it as a VERY large ych?

Yeah, I can see someone buying that. Don't know how long it would take to sell but I do beleive someone will buy it. That sounds like a massive project