Great. In my humble opinion, the fact that this game is a hybrid—neither really an RPG nor quite a choose-your-own-adventure book—makes it difficult to publish. Have you tried contacting Pattern Recog Editions? They published Warpland (an OSR RPG with a graphic style similar to your game) and Hieronimus (a narrative game where images play a prominent role).
And as a follow-up question, can the game mechanics be used by a third party?