A quick lunch hour caricature

Well while I was sitting at my desk on my lunch hour the other day out of nowhere I decided to draw a quick caricature.... I have photos saved on my memory card of faces that would be good to caricature. I only had my notepad on me so the paper was very small and I ran out of room to exaggerate certain features. I think I could of gone a lot further with the drawing but ran out of room! But I'm quite pleased with how it turned out anyway, next time I'll draw him on A4 and really exaggerate his receding hair line!