There isn't much to be ruined to a TT Armor. I would say, if you put some nice holes into the motherboard tray and around that surrounding area, your case would look much nicer without all the wires hanging.
A picture on the side? You mean the side panel window? Buy a plexiglass at Home Depot or something, create your own design and put it on there. Well I think that's how you do it. Might want to ask some side panel modders here on Tech-Forums.