Hello and Welcome to the DN community. I have answered your question in the forum. I hope this helps.

"If the "download now" option isn't working for you, have you tried the "enlarge wallpaper" option directly under the picture? Once that screen has loaded, then in the top right corner you will see "Options" which gives you some preselected screen resolution sizes or you can select the "click here" to tweek the image even more."