Ironically, Drawing on the Right Side of the Brain recommends as an exercise to draw the picture upside-down, so that the “forest” does not distract you from getting the details right.
(But it is not assumed that the resulting picture will be beautiful, and there is also no grid that would introduce artificial line bends.)
Perhaps a metaphor could be made for that, too, that sometimes focusing on the big picture prevents you from noticing that you got the details wrong, which can also ruin the outcome.
Ironically, Drawing on the Right Side of the Brain recommends as an exercise to draw the picture upside-down, so that the “forest” does not distract you from getting the details right.
(But it is not assumed that the resulting picture will be beautiful, and there is also no grid that would introduce artificial line bends.)
Perhaps a metaphor could be made for that, too, that sometimes focusing on the big picture prevents you from noticing that you got the details wrong, which can also ruin the outcome.