//* Remove the default header
remove_action( 'genesis_header', 'genesis_do_header' );

//* Add custom header
add_action( 'genesis_header', 'sk_do_header' );
function sk_do_header() {

    echo '<a href="http://metro-pro.dev/"><img src="http://metro-pro.dev/wp-content/uploads/2014/10/header-1068x200.jpg" alt="Home" /></a>';

}