diff --git a/model/Boss4Phase1.png b/model/Boss4Phase1.png new file mode 100644 index 0000000..3f0e428 Binary files /dev/null and b/model/Boss4Phase1.png differ diff --git a/model/Boss4Phase2.png b/model/Boss4Phase2.png new file mode 100644 index 0000000..dc4f397 Binary files /dev/null and b/model/Boss4Phase2.png differ