Get properties of specific items in collection

Questions
1

In Umbraco 7.4.1 I want to have a razor script taking 5 of the latest articles marked with the IsFeatured property and make Bootstrap 4 cards. However I want some of them to be bigger, and need to place them manually. I was thinking something like the code below, however I cannot findout how to get the properties for the first item, and then skip the first items and do a foreach on the rest.

@inherits Umbraco.Web.Macros.PartialViewMacroPage
@{  var topStories = Umbraco.Content(1052).Descendants().Where("Visible").Where("isFeatured == true").OrderBy("CreateDate desc").Take(5);
    var TopItem = topstories.Items.Item(0);
 }
<div class="row">
	<div class="col-xs-12">
		<div class="col-xs-6">
				<div class="card">
					<div class="card-block">
					  <h4 class="card-title">@TopItem.pageTitle</h4>
					  <p class="card-text small">@TopItem.pageSnippet</p>
					  <p class="card-text"><a href="@TopItem.Url">Les mer</a></p>
					</div>
				</div>
		</div>
		<div class="card-group">
		@foreach(var item in topStories){
			<div class="card">
					<div class="card-block">
					  <h4 class="card-title">@item.pageTitle</h4>
					  <p class="card-text small">@item.pageSnippet</p>
					  <p class="card-text"><a href="@item.Url">Les mer</a></p>
					</div>
				</div>
		}			 
		</div>
	</div>
</div>
This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/75625-get-properties-of-specific-items-in-collection