ere, you can see the expression of sky and clouds.

The upperest cloud is depicted by just one contour line like Durer's "Sea Monster".

The shadow of the clouds are engraved by very narrow lines as hair lines.

These line is curved along the shape of clouds and are characteristic.

This is not-realistic but enough successful for a graphic effect, I think. These details are the one of pleasures of the engraving.
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