Arduino LED NightRider Ambulance

Hi, here's a project for Arduino Uno R3 project with 5 LED lights, switched according to light level that is sensed by a photo-resistor. Program displays a NightRider (back-and-forth) effect in full light and an ambulance effect in lower light. Speed of either effect is affected by the light level (faster under more light). 

Video:  https://www.youtube.com/watch?v=wnpCkznqygg
Code below...

/*
  AnalogReadSerial
  Reads an analog input on pin 0, prints the result to the serial monitor.
  Attach the center pin of a potentiometer to pin A0, and the outside pins to +5V and ground.

 This example code is in the public domain.
 */

int led1 = 12;
int led2 = 11;
int led3 = 10;
int led4 = 9;
int led5 = 8;

// the setup routine runs once when you press reset:
void setup() {
  // initialize serial communication at 9600 bits per second:
  Serial.begin(9600);
  pinMode(12, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(8, OUTPUT);
}

// the loop routine runs over and over again forever:
void loop() {
  // read the input on analog pin 0:
  int sensorValue = analogRead(A0);
  // print out the value you read:
  Serial.println(sensorValue);
  delay(1);        // delay in between reads for stability
 
  if ( sensorValue > 785 )
{
  digitalWrite(led1, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100000/sensorValue);                 // wait
  digitalWrite(led2, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100000/sensorValue);                 // wait
 
  digitalWrite(led1, LOW);    // turn the LED off by making the voltage LOW
  digitalWrite(led3, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100000/sensorValue);                 // wait
 
  digitalWrite(led2, LOW);    // turn the LED off by making the voltage LOW
  digitalWrite(led4, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100000/sensorValue);                 // wait
 
  digitalWrite(led3, LOW);    // turn the LED off by making the voltage LOW
  digitalWrite(led5, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100000/sensorValue);                 // wait
 
  digitalWrite(led4, LOW);    // turn the LED off by making the voltage LOW
  delay(10000/sensorValue);                 // wait
  digitalWrite(led5, LOW);    // turn the LED off by making the voltage LOW
  delay(0);                 // wait


  int sensorValue = analogRead(A0);
  // print out the value you read:
  Serial.println(sensorValue);
  delay(1);        // delay in between reads for stability
  if ( sensorValue > 800 )
{
  digitalWrite(led5, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100000/sensorValue);                 // wait
  digitalWrite(led4, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100000/sensorValue);                 // wait
 
  digitalWrite(led5, LOW);    // turn the LED off by making the voltage LOW
  digitalWrite(led3, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100000/sensorValue);                 // wait
 
  digitalWrite(led4, LOW);    // turn the LED off by making the voltage LOW
  digitalWrite(led2, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100000/sensorValue);                 // wait
 
  digitalWrite(led3, LOW);    // turn the LED off by making the voltage LOW
  digitalWrite(led1, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100000/sensorValue);                 // wait
 
  digitalWrite(led2, LOW);    // turn the LED off by making the voltage LOW
  delay(10000/sensorValue);                 // wait
  digitalWrite(led1, LOW);    // turn the LED off by making the voltage LOW
  delay(0);                 // wait
}
} 

  else {
  digitalWrite(led2, LOW);    // turn the LED off by making the voltage LOW
  digitalWrite(led4, LOW);   // turn the LED on (HIGH is the voltage level)
  digitalWrite(led1, HIGH);   // turn the LED on (HIGH is the voltage level)
  digitalWrite(led3, HIGH);   // turn the LED on (HIGH is the voltage level)
  digitalWrite(led5, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100000/sensorValue);                 // wait
 
  digitalWrite(led1, LOW);   // turn the LED on (HIGH is the voltage level)
  digitalWrite(led3, LOW);   // turn the LED on (HIGH is the voltage level)
  digitalWrite(led5, LOW);   // turn the LED on (HIGH is the voltage level)
  digitalWrite(led2, HIGH);    // turn the LED off by making the voltage LOW
  digitalWrite(led4, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100000/sensorValue);                 // wait
 
    int sensorValue = analogRead(A0);
  // print out the value you read:
  Serial.println(sensorValue);
  delay(1);        // delay in between reads for stability
 
    }
 
}