diff --git a/images/fig3.png b/images/fig3.png index 6ddfb38..0a66493 100644 Binary files a/images/fig3.png and b/images/fig3.png differ diff --git a/images/fig4.png b/images/fig4.png index ae65c58..b1f73e9 100644 Binary files a/images/fig4.png and b/images/fig4.png differ