Here are examples of the same model and same sketchy line style exported at different sizes.
Export at view size
Export at 3000 px wide
Export at 6000 px wide
Here's a comparison of the three.
Comparison of the three sizes
You'll see that there's more detail in the larger exports although the lines get thinner. You have to weigh out what you need to show and how. You can leverage this to get varying line weights in the same images as in this one:
Adirondack Chair marker.png
The styles I make always use the maximum number of stroke lengths and the maximum number of strokes per length so as to make it possible to get the most detail.
