A map is planned, but it's intended to be an unlockable that you get from doing a search and find quest around mid-late game. The fire collectibles are actually health pickups, so I guess you just didn't get hit lol. They're going to be a random chance drop from breakables at some point, I just wanted to throw some in in case the save run was a little lengthy in a couple places.
The painting idea is really neat, I'll definitely keep that one in mind.