I came top in art at school, studied design, and am now a photographer. I used to paint (pictures, not houses) and draw a lot. But deep down I am very much a minimalist. I love using the least to do the most. So my boxes have no graphics at all - I feel they should I guess but I doubt I would ever be happy with anything I put on them. For the most part I am anti-decoration. I don't like overly showy, shiny guitars. For a long time I gigged with a Setzer Sig Gretsch 6120 but I removed the pickguard, put a plain truss rod cover on it and regular knobs. So it's all about the shape of the guitar, not the bling.
Having said all that I am in awe of some of the beautiful boxes some of you guys do. The etched enclosures, the intricate designs, the simple designs with rubber stamps - fantastic. But if I ever decide to do some graphics it will be very minimal! At the very least I think I should label what the knobs do.
Years ago when I was getting motorbike parts powdercoated in texture black I took my TC Electronic Flashback Delay pedal enclosure and got it powdercoated too. So it has no graphics either. But it looks very cool!