This is an image of Steve Wozniak speaking during his keynote at The Fifth HOPE. Unbelievably, this Steve's keynotes are even more interesting than the other ones.
You can get a lot of detail in pumkin carving if you start your cuts with an exacto knife into the pumkin skin and then switch to a pumkin carving knife deeper into it. Be sure to go slow and hold the exacto close to the head to avoid slippage.
