ViewModel with separate XPM properties

gistfile1.cs

@model ArticleViewModel

@foreach(var relatedLink in Model.RelatedLinks)
{
    <div class="cd-list">
    	@relatedLink.XPMMarkUp
	  	<a href="@relatedLink.Url" title="@relatedLink.Title" class="cd-link-ext" target="_blank">
      		  @relatedLink.Image.XPMMarkUp
		      	@Html.RenderImage(relatedLink)
		</a>
	</div>
}