I like what I see, Impala. Nice graphics.
However, important note, you can't have 3 locked doors back to back like that, it won't work. The game engine only allocates one bit per screen (4 screens per area) for whatever object is in that screen. By item, I mean anything that should disappear permanently when taken, even after leaving the world. Items (Candle, etc.), experience bags, keys, Heart and Magic containers, defeated bosses, crystal placements. Red Jars are allowed to regenerate. If you did that, unlocking one door would make all the others disappear as well, assuming they are in the same screen.
Also, the locked door with the Kidnapped Child is nice, but you should make sure it doesn't break any logic in palaces, for example, like having a palace key used for such a door. You don't want to create an unwinnable situation.
Also, the Chandeliers in North Palace (Area 0) can be moved vertically or horizontally, or removed altogether, if you prefer that. The code and data tables are right at the beginning of Bank 0, starting at 00D5.