Struggling to get high resolution from this stl

[Tbonner (THOMAS G BONNER)]

Am told by the seller that this is a parameters issue, however my many attempts have been fruitless.
[[viking ship test.c2d - Google Drive]

any suggestions are appreciated as I am quite new at this.

[Tod1d (Tod (with 1 'd'))]

Here’s the detail on the bow of the boat with the 1/16" ball

and with a 1/32" ball

If you can share the STL, we can take a look at the detail in the model.

[Tbonner (THOMAS G BONNER)]

[7020. Viking ship 3d Printing.stl - Google Drive]

[Tod1d (Tod (with 1 'd'))]

Here’s the actual size of the STL. Even at 15.5" some of the smaller valleys are…

About 0.010" at the bottom.
Here’s a shot of the front person’s face

At 9" dia., you will need a 0.25 mm ball to get most of the fine detail that’s available in the model.

[Tbonner (THOMAS G BONNER)]

Thanks Tod. That is helpful.