I wonder what the level of total corruption will eventually affect. Will it be taken into account at the very end of the game to give a couple of different endings, or will it cause some extra options during the game? Or will a certain level lead to an unavoidable game over before the true ending?)
Also, I'd recommend you to not polish the art yet, if you're planning it. Even the sketches already look very decent and tell the story well enough. I'd polish it all after the whole game is finished, and then put it on sale in Steam too)