I tried crushing the PNG, but couldn't get it any smaller. The online tools I have used previously did manage to save 20%, but at the expense of worsening the banding. The PNG is 2.3MB, the JPG is 651KB.
I actually think the JPG looks a bit better. Look at the diagonal in the bottom right 3rd for example, there's more detail to the line.
Attaching xz with JPG and PNG files.
I tried crushing the PNG, but couldn't get it any smaller. The online tools I have used previously did manage to save 20%, but at the expense of worsening the banding. The PNG is 2.3MB, the JPG is 651KB.
I actually think the JPG looks a bit better. Look at the diagonal in the bottom right 3rd for example, there's more detail to the line.