cauliflower crust pizza

Can you tell the difference- which is the cauliflower crust and which is the regular crust? My friend Heather Henderson, took these pictures after she made these.... my son's guess was the top picture was regular crust.... take a look and see what you think.
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Well here's what the results are........




The top crust is actually cauliflower

she got the recipe from the website:
 http://www.theluckypennyblog.com/2013/02/the-best-cauliflower-crust-pizza.html?m=1
results of taste is that no one could taste the difference between the 2 crusts, same toppings, same everything except the crust!