Also, I like the idea of having no check points in the game, but can understand the frustration one would have from playing 100 levels only to lose everything. There is a decent market for rogue-like games (examples:The Binding of Isaac, Dungeons of Dredmor, FTL, XCOM, Don't Starve) and I for one love playing games were your actions have game-ending consequences. Maybe for the market that enjoys the difficulty like this you could have a "hardcore" mode?
Oh, and another thought I had. What if instead of getting a pile of treasure from the end boss, you just have the gold you collect from playing? So it's like the stranger knew you would come for your mother, forcing you build up the wealth she had promised you. She filled her promise for huge stacks-o-cash by taking your mother.
Mind blown, huh?!
Anyway, where is that art you were talking about? I wanna see.