Having trouble drawing an image in Qt using QGraphicsScene

Question

1. The code below loads an image using QLabel. The code uses: myLabel.setMask(pixmap.mask()); and it works as it should. The problem comes when I try and load an image using QGraphicsScene.

   #include <QApplication>
   #include <QLabel>
   #include <QtGui>
   
   int main(int argc, char *argv[])
   {
      QApplication app(argc, argv);
      QLabel myLabel;
      QPixmap pixmap("/path/tomy/image.jpg");
      myLabel.setPixmap(pixmap);
      myLabel.setMask(pixmap.mask());
   
      myLabel.show();
   
      return app.exec();
   }
   

2. In this code I am attempting to the same as above but using QGraphicsScene. The pixmap is loaded properly, after that I am not sure why the program is not working properly. Is it because there is no setMask() operation? Or is there an operation missing that is needed to make the image visible?

   #include <QtGlobal>
   
   
   #if QT_VERSION >= 0x050000
      #include <QtWidgets>
   #else
      #include <QtGui>
   #endif
   
   int main(int argc, char *argv[]) 
   {
      QApplication a(argc, argv);
      QPixmap pixmap("/path/tomy/image.jpg");
      QGraphicsPixmapItem item( pixmap);
      QGraphicsScene* scene = new QGraphicsScene;
      scene->addItem(&item);
      QGraphicsView view(scene);
   
      view.show();
   
      return a.exec();
   }