if you open your Xcode Project, you see in the second row "Project"and "Target". if you click on "Target", you see in the middle window your actually launch images. ( if not, click on "Summary" on top.) right click on the launch image open a menu with ""select File", "show in Finder" and "delete" delete the portrait image. under landscape, you can load the landscape image that you have created and copied in the ressource folder of you project.