// image variable
PImage david;

void setup () {
 size(600,600); 
 // .gif or .jpg or .png (.png and .gif can be transparent)
 david = loadImage("arrow.png"); 
 strokeWeight(4);
}

void draw() {
  frameRate(120);

 //display image (name, x, y, width, height) (in pixels)
 tint(mouseX,124,219);
// if the mouse is down, initiate drawing sequence
 if (mousePressed) {
  line(mouseX,mouseY,pmouseX,pmouseY); 
  image(david,mouseX,mouseY,50,100);
 }
}