I placed an order for a 156, then read the complaints about people not getting the color they wanted. Contacted live chat and was told there is no choice of color you take what you get. Cancelled my 1st order as a result.
Then I contacted a couple other retailers and Burton themselves. As I originally thought, colors are not take what you get they are size specific. The pics above for the different sizes are the color you will get for that size.
I reordered a 156 and got the red blue that is pictured and what I wanted