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Well, I think there are much better such images, and ones which are vast in size.
https://www.savacations.com/animal-geoglyphs-nazca-lines-hummingbird-whale/
Quite abstract, but successful in that, I think, and rising above the level of cartoons. It's probably just a case of there having been different artists in different eras; perhaps this one, which is thought to be earlier than those above, was done by a lesser artist before someone perfected the technique and created lots in a short space of time:
But yeah, I certainly wouldn't make a very good fist of creating one of those. :)
I'd like to see the quality of your drawing when 37 meters long with only tools from 200bc