Sure, but your world will be deeper if you give it a strong sense of causality —or so I think. Un-Earthly geology, sure. Make sure however the layout of your

Sure, but your world will be deeper if you give it a strong sense of causality —or so I think. Un-Earthly geology, sure. Make sure however the layout of your map appears to be mostly a consequence of that geology. (Maybe you meant something similar with "consistent with yourself"?) Unless throwing causality out the window was the goal all along, of course.