For the environment, I set up a custom character controller in Unity for the isometric view as well as built and assembled everything in this view. Lots of technical issues came up when building the scene, so in order to save time, I decided not to add lineart to my textures. Lineart had to all be done by hand unlike my auto-generated painted textures, so my style had to shift. Here are my screenshots of the scene (the among us character is temorary and was used to test my character controller lol).