Unfortunately I'm still unable to play the game on Linux. Seeing that using the exe inside of Wine created an infinite loading screen I opted to use nwjs as described
in this wonderful post. Unlike Windows, Linux file names are case sensitive so the first error I got that complained about the img/pictures/ui folder being missing. After making the folder name small case there's a type error: "Cannot read property 'X' of undefined". I'm currently using nwjsV0.38 as the latest V0.84 instead gives an error saying that property "name" is invalid.
Guess I'll settle for reconstructing some of the more alluring scenes in krita until a solution arises.