<%= nested_images_id(f.object) %>
<%= nested_image_cropper(f.object, { image_name: "imgA", ratio: :user ,:label_title => "tralalal", :choose_text => "Elegir Imagen"}, { :class => "img_start" }) %>
<%= nested_image_cropper(f.object, { image_name: "imgB", ratio: :user }, { :class => "img_start" }) %>