>>27622799Honestly, you get used to editing things with all the files separated, once you learn where everything is. When I do those music covers I sometimes post here, I have to edit three different files separate from the audio file itself just to put it in the ROM (audio.asm to put the file in, and audio/music_pointers.asm and constants/music_constants.asm to give the song the proper pointers and be able to use it in the rest of the disassembly). That probably sounds excessive but it's just editing a line or two in each, takes like 30 seconds total even if I don't already have the files open.
>>27626116Honestly, the biggest issue with that map in my eyes is it looks too open for the Game Boy. Remember the Game Boy has a resolution of 160x144, which means in-game you'll only see 10x9 tiles at once.
Honestly though, 2x2 tiles isn't that limiting if you make custom tilesets. I know you can have tilesets as large as 256 tiles, and hacks like XY Naturia have really expansive-looking sets despite being traditional hacking. I've never worked with tileset editing though, so maybe I'll have to try it myself so I can help. The only maps I made were a couple maps I added for test purposes (the test being whether I could add new maps to the game without replacing older ones).