I think I can fly

Here you can see one of two sketches I made in the university. I had an idea for a bigger sized picture, which should come out very sad. I tried to practice  some positions for the motive.
The problem is, I won't find the time to finish that picture soon, because there is so much left to do! The next exams will come in almost three weeks. For practicing I used the character of a very close friend: Pi. =D But the final picture will have a different character.