controling 3 servos via serial comunication

Thanks for all the feedback.
I have tried to think about what you said and here is my result:

#include <Servo.h> 

//Holds the servo ID
char bigChannel=0;
char smallChannel=1;
char gripperChar=0;

//These are the objects for each servo.
Servo servoBig
Servo servoSmall
Servo servoGripper

//This is the space that will hold data from the Serial port.
char serialChar=0;

//Attach servos to pins and give starting positions
void setup(){
  servoBig.attach(2);
  servoSmall.attach(3);
  servoGripper.attach(4);
  
  servoBig.write(90);
  servoSmall.write(90);
  servoGripper.write(0);
  
  Serial.begin(9600);  //Set up serial connection for 9600 btp.
  Serial.write("Power On")
}

void loop()]{
  if(Serial.available() > 1){     //Wait for data on the serial port.
  serialChar = Serial.read();         //Copy one byte from serial buffert
  if(serialChar == bigChannel){      //Check to see if the character is the servo ID 
    servoBig.write(Serial.read());     //set the Big motor to the recived position
    gripperChar=gripperChar+1;      //tell the gripper one servo have been moved
  }
  else if(serialChar == smallChannel){   //Check to see if the character is the servo ID 
    servoSmall.write(Serial.read());
    gripperChar=gripperChar+1;
  }
  if(gripperChar == 2 ){                 //gripper closes if the other servos have made 2 moves
    delay(3000);                           //wait for the arm to be in position
    servoGripper.write(180);
   delay(2000);                            //wait for the gripper to make its move
     } 
  else if (gripperChar == 4){            //gripper open when the other servos done another 2 moves
    delay(3000)
    servoGripper.write(0);
    delay(2000);
    gripperChar=0;                     //resets the gripperChar so the gripper will close after the next two moves              
  }
 }
 else{                        //Arm to neutral position if there is no data waiting
   if servoBig != 90;{
   servoBig.write(90);
   }
   if servoSmall != 90; {
   servosmall.write(90);
   }
 }
}