I started with the same parameters in the notebook. Then I tried different styles and different iterations but all of them less than 50.
I think the input picture has a lot to do with the output and the quality of the styling. For the one in medium, when used pictures like the starry night or any other similar scene it didnt do well. Since my output was portrait I thought I will try the input, a portrait as well.
That worked, and then to adjust the quality I tried with different iterations and for the one I posted , it was 20 th iteration.
I did not try any changes in the loss function.