I will create a map for a dungeons and dragons campaign

I will create a DnD map for your world, whether it be a dungeon that needs squares added or a whole continent. It will have a scale. It will be 4000x3000 pixels large. Original source material will need to come from you. Let's make this clear, I'm not making you a world with names of every location. That is something that you will have to provide along with a basic outline of the map. I will need to be in constant communication with you for it to work.