Heya! For those who write novels, how far do you wish to go in making a realistic map, how much effort are you willing to give?

I ask because people often tell me I tend to "couper les cheveux en quatre'', a french expression which simply means to make things even more complicated than needed to. However, my maps are not realistic, far from being as detailed as those you see in the contests. Granted, I draw on paper so I can't go in such depth and I am no specialist. Still, what cartographers want, is it what readers want?