Simple Arduino code for my little green pumpkin

cylon_pumpkin.ino

// Internal LEDs
int blue1 = 12;
int blue2 = 13;

// Eye LEDs
int led1 = 2;
int led2 = 3;
int led3 = 4;
int led4 = 5;
int led5 = 6;
int led6 = 7;
int led7 = 8;
int led8 = 9;
int led9 = 10;
int led10 = 11;

void setup() {                

  pinMode(blue1, OUTPUT);
  pinMode(blue2, OUTPUT);
  
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(led4, OUTPUT);
  pinMode(led5, OUTPUT);
  pinMode(led6, OUTPUT);
  pinMode(led7, OUTPUT);
  pinMode(led8, OUTPUT);
  pinMode(led9, OUTPUT);
  pinMode(led10, OUTPUT);
  
  // Turn on the internal LEDs
  digitalWrite(blue1, HIGH);
  digitalWrite(blue2, HIGH);
  
}

void loop() {
  
  // Quick flashing on/off all LEDs  
  for(int i = 0; i< 10; i++) {
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);
    digitalWrite(led4, HIGH);
    digitalWrite(led5, HIGH);
    digitalWrite(led6, HIGH);
    digitalWrite(led7, HIGH);
    digitalWrite(led8, HIGH);
    digitalWrite(led9, HIGH);
    digitalWrite(led10, HIGH);
    delay(100);
    digitalWrite(led1, LOW);
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
    digitalWrite(led4, LOW);
    digitalWrite(led5, LOW);
    digitalWrite(led6, LOW);
    digitalWrite(led7, LOW);
    digitalWrite(led8, LOW);
    digitalWrite(led9, LOW);
    digitalWrite(led10, LOW);
    delay(100);
  }
  // Cylon eyes
  for(int i = 0; i< 20; i++) {
    digitalWrite(led1, HIGH);
    delay(100);
    digitalWrite(led2, HIGH);
    delay(100);
    digitalWrite(led3, HIGH);
    digitalWrite(led1, LOW);
    delay(100);
    digitalWrite(led4, HIGH);
    digitalWrite(led2, LOW);
    delay(100);
    digitalWrite(led5, HIGH);
    digitalWrite(led3, LOW);
    delay(100);
    digitalWrite(led6, HIGH);
    digitalWrite(led4, LOW);
    delay(100);
    digitalWrite(led7, HIGH);
    digitalWrite(led4, LOW);
    delay(100);
    digitalWrite(led8, HIGH);
    digitalWrite(led5, LOW);
    delay(100);
    digitalWrite(led9, HIGH);
    digitalWrite(led6, LOW);
    delay(100);
    digitalWrite(led10, HIGH);
    digitalWrite(led7, LOW);
    delay(100);
    digitalWrite(led8, LOW);
    delay(100);
    digitalWrite(led9, LOW);

    delay(100);
    
    digitalWrite(led9, HIGH);
    delay(100);
    digitalWrite(led8, HIGH);
    digitalWrite(led10, LOW);
    delay(100);
    digitalWrite(led7, HIGH);
    digitalWrite(led9, LOW);
    delay(100);
    digitalWrite(led6, HIGH);
    digitalWrite(led8, LOW);
    delay(100);
    digitalWrite(led5, HIGH);
    digitalWrite(led7, LOW);
    delay(100);
    digitalWrite(led4, HIGH);
    digitalWrite(led6, LOW);
    delay(100);
    digitalWrite(led3, HIGH);
    digitalWrite(led5, LOW);
    delay(100);
    digitalWrite(led2, HIGH);
    digitalWrite(led4, LOW);
    delay(100);
    digitalWrite(led1, HIGH);
    digitalWrite(led3, LOW);
    delay(100);
    digitalWrite(led2, LOW);
    
    delay(100);
  }
}