This is a super peppy design for a Nexus 5 mockup. This is set on a flat bright blue background and fits an image of 1080x1920px. Great for a fun cartoon style app to fit in with the flat design. You can work with a million different concepts in this perfect space. Keep it light and keep it simple. If you have an app that uses reds or oranges in the scheme you can really stand out on this Nexus 5 mockup.