Check out Mars from a decent telescope.
It's a blurry tiny yellow circle with very unclear "shadows" on it.
They drew it really well. Much more impressive than Orion in fact.
Why is Orion unimpressive? Because the author didn't include visible representations of wavelengths that are outside of the range of human detectability?
the drawing of orion is unimpressive, as it is easily visible and drawable to a similar quality with any telescope or even binoculars if you have clear skies. Spotting any sort of features on mars requires huge magnification incredible steadiness and an ability to track the object. Drawing the details for Mars required magnitudes more ability and far better technology.