[Cubical]

That's exactly what I'm talking about wanting to make but I need like tutorials that could show me how to do it in a program like gimp or paint.net. I don;t know how to use any of the tools really but going through a tutorial showing me how to make each background will teach me and I'll be able to mix and match and be creative which is impossible for me when I don't know how things work. Also thanks for replying.