Here is the drawn sheet of Pikachu in a different head pose. Make a circle for the head and then sketch in the facial guidelines. You will then draw the actual shape of Pikachu's head and face structure like so, then draw the ears. Next, add the marks on the tips of the ears then color in the circles for his eyes and nose. You will then draw Pikachu's mouth which is in a very excited expressive form, then draw the circles on his cheeks where the lightning omits from. Once you clean up your mistakes, you will end up with the face of Pikachu you see at the bottom of the sheet.