Xamarin Forms CarouselView does not show images - mvvm

Question

I have two Models and a ViewModels for articles and posts from DB . One of them like this :
public class ArticleData
{
public string Id { get; set; }
public string Title { get; set; }
public string Subtitle { get; set; }
public string Body { get; set; }
public string Section { get; set; }
public string Author { get; set; }
public string Avatar { get; set; }
public string BackgroundImage { get; set; }
public string Quote { get; set; }
public string QuoteAuthor { get; set; }
public string When { get; set; }
public string Followers { get; set; }
public string Likes { get; set; }
}
and i use BackgroundImage in CarouselView like this :
<CarouselView
HeightRequest="300"
Margin="0"
VerticalOptions="Center"
ItemsSource="{ Binding Images.Articles }">
<CarouselView.ItemTemplate>
<DataTemplate>
<Grid>
<ffimageloading:CachedImage
Source="{ Binding BackgroundImage }"
VerticalOptions="Fill"
Aspect="AspectFill" />
</Grid>
</DataTemplate>
</CarouselView.ItemTemplate>
</CarouselView>
And there is no problem with CarouselView and it shows images . But with another Model that likes this
public class FollowingsPostResponse
{
public List<FPostModel> data { get; set; }
public bool isSuccess { get; set; }
public int statusCode { get; set; }
public string message { get; set; }
}
public class FPostModel
{
public int id { get; set; }
public List<string> images { get; set; }
public string userName { get; set; }
public string userProfileImage { get; set; }
public string cityName { get; set; }
public int likesCounts { get; set; }
public string postCaption { get; set; }
}
and use like this
<CarouselView
HeightRequest="300"
Margin="0"
VerticalOptions="Center"
ItemsSource="{ Binding Home.Post }">
<CarouselView.ItemTemplate>
<DataTemplate>
<Grid>
<ffimageloading:CachedImage
Source="{ Binding images }"
VerticalOptions="Fill"
Aspect="AspectFill" />
</Grid>
</DataTemplate>
</CarouselView.ItemTemplate>
</CarouselView>
CarouselView does not show anythings . What's the problem ?

Answer 1

Thanks to #Jason and LeoZhu-MSFT
I solved my problem like this :
<CarouselView x:Name="MainCarouselView" ItemsSource="{Binding images}" Grid.Row="1" HeightRequest="150">
<CarouselView.ItemTemplate>
<DataTemplate>
<Image Source="{Binding .}"></Image>
</DataTemplate>
</CarouselView.ItemTemplate>
</CarouselView>
ItemsSource="{Binding images}" because CarouselView is in CollectionView with ItemsSource="{Binding Home.Post}"