Other than simply adding a wallpaper to your homescreen you can add a custom launcher and custom icon pack to freshen up your device. If you are into the minimal look you will want to check out the Rufus Icon Pack. These icons are also perfect for spring. They include a pastel color scheme, and also a flat design. Each icon has octagonal shape and seems to hover on top of your homescreen thanks to a slight shadowing effect under neath the bottom edge. There are over 1300 hand themed icons, 6 custom wallpapers, an icon request feature, icon mask for unthemed icons, an analog clock widget, muzei support, and a material design dashboard. This icon pack is supported by several custom launchers including Nova, Apex, Action, Smart, Atom, ADW, and more! Head to the link below for the download.
via Play Store