The 4x upscaling didn't help. Likely would look better if I did the pass and then returned the image back to original scale.
Discussion
Additional test.
Photo given AI / Topaz pass, then downscaled back to match original image size.

The 4x upscaling didn't help. Likely would look better if I did the pass and then returned the image back to original scale.
Additional test.
Photo given AI / Topaz pass, then downscaled back to match original image size.
