They never make His face look like it truly did, Isaiah 50:6 "I gave my back to the smiters, and my cheeks to them that plucked off the hair: I hid not my face from shame and spitting." Plus they punched Him in the face to the point He was unrecognizable as a man. The carpel and plantar fascia nerves had spike through them, which was like sign powered electric shocks going through His body from the arms and legs.
He had to be fully God to forgive sins past, present and future. This is hard to explain but, since He is eternal God everything He experienced in His punishment, crucifixion and separation from God was experience eternally. It had to be, since we deserve eternal separation from God. It hard to understand how in His flesh all the pain was felt eternal by His Spirit. I think about that at night sometimes and I can't get my head around it fully.