Wasted Lecture (Or maybe not)

Hi everyone,
I've not been around for last few days, however I'm back :) and hope I'll continue adding some stuff here.
Here is one more drawing from my ericsson phone, well I wasted my whole lecture drawing this one. Don't tell my prof. though ;).
Here is the original version of image:



And here is gimpification of image :) Hope you all like it