Markers - Icones Personalizados Google Maps

Olá! Gostaria de implementar no array var myLatlng icones individuais e fixos para cada um deles, ao inves de utilizar a função abaixo que coloca o mesmo icone para todos. Sou leigo em js, acredito que alguem possa me ajudar. O codigo abaixo é basicamente o mesmo que no site de desenvolvedor do google maps, segue o link original: https://developers.google.com/maps/documentation/javascript/examples/icon-complex

// The following example creates complex markers to indicate beaches near
// Sydney, NSW, Australia. Note that the anchor is set to
// (0,32) to correspond to the base of the flagpole.

function initialize() {
 var mapOptions = {
 zoom: 12,
 center: new google.maps.LatLng($lat,$lng)
 }
 var map = new google.maps.Map(document.getElementById('single-gmap'),
 mapOptions);

 setMarkers(map, myLatlng);
}

/**
* Data for the markers consisting of a name, a LatLng and a zIndex for
* the order in which these markers should display on top of each
* other.
*/

var myLatlng = [
 ['1', $lat,$lng, 4],
 ['2', 28.338166, -81.64695389999997],
 ['3', 28.31497, -81.597636],
 ['4', 28.34903251, -81.61249638],
 ['5', 28.31390193, -81.62090778],
 ['6', 28.30324714, -81.61095142],
 ['7', 28.31307075, -81.5823698],
 ['8', 28.3302221, -81.63386822],
 ['9', 28.34857928, -81.62142277]
];

function setMarkers(map, locations) {
 // Add markers to the map

 // Marker sizes are expressed as a Size of X,Y
 // where the origin of the image (0,0) is located
 // in the top left of the image.

 // Origins, anchor positions and coordinates of the marker
 // increase in the X direction to the right and in
 // the Y direction down.
 var image = {
 url: 'images/default-marker.png',
 // This marker is 20 pixels wide by 32 pixels tall.
 size: new google.maps.Size(51, 70),
 // The origin for this image is 0,0.
 origin: new google.maps.Point(0,0),
 // The anchor for this image is the base of the flagpole at 0,32.
 anchor: new google.maps.Point(0, 32)
 };

 // Shapes define the clickable region of the icon.
 // The type defines an HTML <area> element 'poly' which
 // traces out a polygon as a series of X,Y points. The final
 // coordinate closes the poly by connecting to the first
 // coordinate.
 var shape = {
 coords: [1, 1, 1, 20, 18, 20, 18 , 1],
 type: 'poly'
 };
 for (var i = 0; i < locations.length; i++) {
 var beach = locations[i];
 var myLatLng = new google.maps.LatLng(beach[1], beach[2]);
 var marker = new google.maps.Marker({
 position: myLatLng,
 map: map,
 icon: image,
 shape: shape,
 title: beach[0],
 zIndex: beach[3]
 });
 }
}