Wallpaper your phone
These wallpapers were created using ProCreate on an iPad. They are 2662px square and should provide iOS users with a nice parallax effect on any iPhone or iPad. They are large enough that they should work well as a desktop wallpaper for your laptop as well.
I like to try and stay creative during the week when I'm working, so on my commute I'll often take a simple, repeated image and build up layers, colors, and textures. It's a good way to experiment and learn my tools. The process is meditative and relaxing. It makes my commute into something worthwhile.