diff --git a/cao_sunyata/static/classes/stage_Noisy_2017_sept_cb2.jpg b/cao_sunyata/static/classes/stage_Noisy_2017_sept_cb2.jpg
index 5e7ae11..dbc5afe 100644
Binary files a/cao_sunyata/static/classes/stage_Noisy_2017_sept_cb2.jpg and b/cao_sunyata/static/classes/stage_Noisy_2017_sept_cb2.jpg differ
diff --git a/cao_sunyata/static/classes/stage_Noisy_2017_sept_cb3.jpg b/cao_sunyata/static/classes/stage_Noisy_2017_sept_cb3.jpg
new file mode 100644
index 0000000..cd0e41e
Binary files /dev/null and b/cao_sunyata/static/classes/stage_Noisy_2017_sept_cb3.jpg differ
diff --git a/cao_sunyata/static/classes/stage_Noisy_2017_sept_cb4.jpg b/cao_sunyata/static/classes/stage_Noisy_2017_sept_cb4.jpg
new file mode 100644
index 0000000..096229e
Binary files /dev/null and b/cao_sunyata/static/classes/stage_Noisy_2017_sept_cb4.jpg differ