Below are two images of a map on which I am currently working. These images depict what are supposed to be oil tanks on an offshore oil rig. While they do look like real life oil tanks, they are fairly boring. Also, the catwalk area look quite simply atrocious! (Keep in mind this is early stage development). Does anyone have any suggestions to dress up the tank, or create a better looking catwalk? Thanks in advance for any help you can give.