Modify dropzone , show uploaded image

I'm creating a product image uploader using dropzone.js, i just can upload a photo but cant modify and show it, thank you for help.

$(".dropzone").sortable({ items:'.dz-preview', cursor: 'grab', opacity: 0.5, containment: '.dropzone', distance: 20, tolerance: 'pointer', stop: function () { var queue = myDropzone.getAcceptedFiles(); newQueue = []; $('#imageUpload .dz-preview .dz-filename [data-dz-name]').each(function (count, el) { var name = el.innerHTML; queue.forEach(function(file) { if (file.name === name) { newQueue.push(file); } }); }); myDropzone.files = newQueue; } });