Selecionar todas as imagens no laço for

import java.awt.BorderLayout;  
import java.awt.Component;  
import java.awt.FlowLayout; 
import java.awt.event.ActionEvent;  
import java.awt.event.ActionListener;  
import javax.swing.ImageIcon;
  
import javax.swing.JButton;  
import javax.swing.JFrame;  
import static javax.swing.JFrame.EXIT_ON_CLOSE;
import javax.swing.JPanel;   
  
public class Selecionar extends JFrame {  

    private JPanel jpanel;
    private JButton btnselecionar;
    private JPanel jpanelFixo;
   
    public Selecionar() {
    super("Selecionando Imagens");  
    setDefaultCloseOperation(EXIT_ON_CLOSE);  
    //setLayout(null);  
    setSize(800, 600);
    
    /*********************************************/
    
    int qtdLoop = 2;
    jpanelFixo = new JPanel();
    
    for (int x=0;x<qtdLoop;x++){//2 GIROS
    
    jpanel = new JPanel(new FlowLayout(FlowLayout.LEFT, 11,20));
    btnselecionar = new JButton("Marcar");
        for (int i = 0; i < 3; i++) {
            jpanel.add(new JButton(new ImageIcon("img/iconecadastro2.png")));
        }
    jpanelFixo.add(btnselecionar, BorderLayout.SOUTH);
    jpanelFixo.add(jpanel);
  
    }//FIM DO LAÇO
    
    add(jpanelFixo, BorderLayout.CENTER);
  
    btnselecionar.addActionListener(new ActionListener() {
  
        public void actionPerformed(ActionEvent e) {
        Component componentes[] = jpanel.getComponents();
        
        for (Component c : componentes) {
            if (c instanceof JButton) {
                if(((JButton) c).isEnabled() == true){
                    ((JButton) c).setEnabled(false);
                }else{
                    ((JButton) c).setEnabled(true);
                }
            }
        }
    }
    });  
    
    }  
  
    public static void main(String[] args) {  
    new Selecionar().setVisible(true);  
    }
}