diff --git a/website/levels/level_4_15.png b/website/levels/level_4_15.png new file mode 100644 index 0000000..113e848 Binary files /dev/null and b/website/levels/level_4_15.png differ diff --git a/website/levels/level_4_16.png b/website/levels/level_4_16.png new file mode 100644 index 0000000..69773ba Binary files /dev/null and b/website/levels/level_4_16.png differ diff --git a/website/levels/level_4_17.png b/website/levels/level_4_17.png new file mode 100644 index 0000000..7cd0b08 Binary files /dev/null and b/website/levels/level_4_17.png differ diff --git a/website/levels/level_4_18.png b/website/levels/level_4_18.png new file mode 100644 index 0000000..ac6f352 Binary files /dev/null and b/website/levels/level_4_18.png differ diff --git a/website/levels/level_4_19.png b/website/levels/level_4_19.png new file mode 100644 index 0000000..a6e563c Binary files /dev/null and b/website/levels/level_4_19.png differ diff --git a/website/levels/level_4_20.png b/website/levels/level_4_20.png new file mode 100644 index 0000000..ff3c2c7 Binary files /dev/null and b/website/levels/level_4_20.png differ