Flashlight Alert

Description
Many galleries restraint people from taking photos with flashlights so I designed an alarm that'll set off if a flashsight went off. I used the photocell to detect the level of light and if it's above a certain value, speaker will sound in a two-note pattern and blue and red LED lights will be blinking continuously. They'll settle back to oirginal state after 50 cycles. 
 
https://vimeo.com/77021192
 
Code
int ledPin = 9;

int bluePin = 3;

int speakerPin = 7;

int sensorPin = 0;

int val = 0;

// note names and their corresponding half-periods  

byte names[] ={ 'c', 'd', 'e', 'f', 'g', 'a', 'b', 'C'};  

int tones[] = { 1915, 1700, 1519, 1432, 1275, 1136, 1014, 956};

void setup() {

  pinMode(ledPin, OUTPUT); 

  pinMode(bluePin, OUTPUT); 

  pinMode(speakerPin, OUTPUT); 

  Serial.begin(9600);

  Serial.println("ready");

  digitalWrite(speakerPin, LOW);

  digitalWrite(bluePin,HIGH);

}

void loop() {

  val = analogRead(sensorPin);

  delay(10);

  Serial.println(val);

  if (val > 900){

    for( int i=0; i<50; i++ ) { 

  for( int i=0; i<50; i++ ) { 

    digitalWrite(ledPin, HIGH); // write to LED

    digitalWrite(bluePin, LOW);

    digitalWrite(speakerPin, HIGH);

    delayMicroseconds(tones[5]);

    digitalWrite(speakerPin, LOW);

    delayMicroseconds(tones[5]);

  }

  delay(10);

  for( int i=0; i<50; i++ ) {

    digitalWrite(ledPin, LOW); // write to LED

    digitalWrite(bluePin, HIGH);

    digitalWrite(speakerPin, HIGH);

    delayMicroseconds(tones[1]);

    digitalWrite(speakerPin, LOW);

    delayMicroseconds(tones[1]);

  }

    }

  }

}