Yeah, they're pretty visible Sue, when your bp is at a normal level are they so visible? I describe my boobs as looking like a road map too, what with all the stretch mark roads as well as the veiny rivers!
Don't think I'll be trying to get a tan there at any point to try and hide them (well, only out a bottle!). Though my upper chest is definitely not as veiny as the pic (but like Nonya says, that's the vascular type of EDS). How visible they are varies a lot, if I've been moving about gently and feel calm, they're barely visible, but if I've been rushing about, if I feel stressed, or after a shower, they're visible all over, especially my hands and feet. The palms of my hands sometimes look ... weird - next time it happens I'll try to get a pic. I also get standy-out man veins on the backs of my hands, up my fore-arms, and weirdly, on my shins where the veins pass over the bone, which I've only noticed in the last year or so. I'm still not convinced it's an abnormal EDS thing in me, even though my feet look more veiny at times than one of those pics! It just ... doesn't seem so important most of the time - if I feel bothered, I can put fake tan on!