Yeah, you’ve just used one item in each entry. You need to use at least three items per entry. If you check the first few entries, you’ll see they use four or five items to make the overall image.
The competition isn’t to download and then re-upload your favourite Elements item ‘as is’… it’s to download at least three different items and edit them together to create one image, thus demonstrating the great stuff that people can make if they are Elements subscribers. Or something like that.