Ancient Chinese maps might not have, but Japanese maps were often more decorative and included trees, birds, animals, even flowers, sometimes sacrificing accuracy for art.
Of course some were more militaristic/informative in nature, and I don't have any from the particular period you're referencing, And... I think you're leaning more toward the first style... but I thought I'd correct the generalization for future reference
In other news, I like the new waves a lot, And the mountains, but the clouds are *too* thick, maybe? It doesn't seem to fit the style of the waves/symbols/etc.. ?
And the border clashes, I think just because it's too bright.... I like it, but maybe duller reds? idk.