rough statement / general idea:
4 years. 1460 days. 35040 hours. We've put in the hours. Now it's our time to show what we've done. It's our time to move on. But before we do, let's celebrate the hours we've spent here & show what we're made of.
style one: forward / motion, bright / colorful, graphic shapes, large numbers
style two: black & white with one other color (maybe pink), little more up scale, illustrative