Notification idea for smartphones on lock screen

Idea is to show, at first, the circle with the head inside. The color of the circle represents an application. Once someone presses the corresponding circle the head moves little bit underneath and the message is shown. Long press on the massage opens the quick-options for that message.
Continual messages from the same person show simply by adding another bubble with the text underneath the older one. So the one the bottom is the newest one.

If anyone wonders the picture in the background is mine. :D